N Vision 74 review: This 500kW (670hp) hydrogen car only emits water!

CarExpert

Hyundai has just crammed over 500kW of power (670hp+) and almost 1000Nm of torque through the rear wheels of its rolling lab concept called the Hyundai N Vision 74 and Paul Maric has driven it! This hydrogen and electric concept takes it to the next level of what can be achieved with zero emissions.  Hyundai RN22e (Ioniq 6 N) review: https://www.youtube.com/watch?v=5S8CoUry00k  More Hyundai content: https://www.carexpert.com.au/hyundai  Skip Ahead: Intro: 00:00 Exterior 0:34 On the track 3:43 Engine specs 7:19 Verdict 9:27  We review every new car on the market, bust car myths, cover the latest car tech and answer your burning questions.  Whether you need new car advice, purchase validation or simply love learning more about new cars and technology, we are your car experts.  Subscribe to Car Expert: https://www.youtube.com/channel/UC7DvMhvy3H7ntEgn9n3xQcQ?sub_confirmation=1  You'll find us dropping new video content three times a week. If you'd like to ask a question about one of our videos, simply leave us a comment. If you'd like to give us any feedback on our content, feel free to email us, or alternatively, hit us up on social media.  Finally, we want this channel to grow with your support and feedback. If there's anything you don't like or would like to see us change, we'd love to hear from you!  Follow us on social media to see what we're up to and to ask any questions!  CarExpert: Facebook: https://www.facebook.com/CarExpertAus Twitter: https://www.twitter.com/CarExpertAus Instagram: https://www.instagram.com/carexpert.com.au  Paul Maric: Facebook: https://www.facebook.com/PaulMaric Twitter: https://www.twitter.com/PaulMaric Instagram: https://www.instagram.com/PaulMaric  #hyundai #nvision74 #review

Transcript

00:00 G'day, I'm Paul. So Hyundai has just released the Envision 74. This is a rolling lap, so it's a

00:06 concept car. They're testing out a lot of new technology within this. Today I'm going to walk

00:10 you around this, but we're also going to drive a one-of-one prototype that basically will herald

00:15 where Hyundai wants to go with hydrogen tech, which has me pretty excited because this is an

00:20 insanely good-looking car as well. Now if you do want to skip ahead to other parts of this video,

00:24 you can use the time codes on the screen, or if you're on YouTube you can scroll down below. And

00:28 if you haven't done so already, subscribe to our channel and press the bell icon. But let's get

00:32 started. Now before we go for a drive and I run you through some of the bits beneath the skin,

00:38 let's talk about the design. So this thing is huge. I wasn't expecting this to be as big in person.

00:44 It's longer than an E-Class. The wheelbase is almost three meters long as well, so it really

00:48 has a lot of presence to it. And the guy that designed this car actually worked for GM and

00:53 designed the Camaro out of Melbourne, so it has a kind of very, very loose Australian connection.

00:58 In terms of the design elements, this is obviously a concept car. This car that you're looking at

01:03 here is, it's a bit of a design buck. There's actually nothing really inside of it, but it

01:07 gives you a clear indication of where they wanted to go with the design language. So you can see

01:11 these pixel headlights here. We've seen a version of this on Staria and also with the Ioniq 5,

01:18 and I think it just really signifies where Hyundai wants to head with LED technology.

01:23 A lot of cooling for this car, and the reason that's important is because it uses not only a

01:27 hydrogen fuel stack, but it also uses EV, so it has twin electric motors on the rear axle,

01:32 and this demands a lot of cooling to make sure that you can access that performance every single

01:38 time. It's rear-wheel drive as well, which I think is pretty cool. Now, come around and have a look

01:42 at these wheels. Obviously this is just the, I guess, the rolling concept car, but the actual

01:49 production car has a proper set of wheels and tyres. I think this design looks really cool.

01:53 If you think of stuff like GT2 RS with the Manthe Racing kit, you have this type of setup

01:59 on the brakes as well, which I think is pretty impressive. Now, have a look down the side of

02:04 the car. This is where you get some of that cooling element. So beneath the skin here,

02:07 you've got a set of radiators there that help sort of cool that whole performance package as

02:12 it's running, and the profile of this car is really cool. So it runs all the way down the

02:16 side there. You can see big gaps in that fender flare that sort of scoop air into the back here,

02:22 and this is where you'll find your two hydrogen tanks as well. Twin electric motors on the rear

02:27 there, so it is very much focused on adding weight to the back of the car there to keep it nice and

02:31 stable. Come around to the back. Okay, now the back of the car. Have a look at this enormous

02:35 wing here. So again, it's all about downforce because when you have that much power and torque

02:39 to play with on the rear axle, you need to keep everything tied to the ground as much as you can.

02:45 More of that pixel LED setup at the back here, and of course no exhaust because hydrogen emits

02:50 just water, so you're not going to find anything down there. Given that you have a battery pack

02:54 and hydrogen, you don't need to have an exhaust outlet there. So where does 74 come from? Well,

02:59 Hyundai created, well, Hyundai designed a car called the Pony Coupe, and this was meant to go

03:05 into production but they didn't have the chassis or the engine for it, but this is where the silhouette

03:10 comes from, and it was a design that actually, I guess, was the predecessor to the DeLorean. So that

03:17 design followed and flowed onto there, and that's where this design has come from as well. So it is

03:22 a pretty cool car to look at, and it just has a real presence to it as well. So next step is going

03:28 to be to take it for a drive. We're only going to get a really brief amount of time in the car,

03:31 but I'm going to run you through as much as I possibly can and give you a reaction of what

03:35 it's like driving a hydrogen-based EV. There we go. Perfect. We good? Adjust it properly.

03:45 Ready? Now we start. Perfect.

03:49 So we've just hit the road in the N-Vision 74. This is one of one, so I'm just trying to be

04:01 as careful as I possibly can because I don't want to damage anything. It is a weird feeling driving

04:07 this because it actually feels like a fast EV. Like it's not really a foreign

04:14 sort of concept. It has stacks of traction, and you can really just get stuck into it. It has

04:23 over 500 kilowatts of power when you have both the hydrogen fuel cell and the electric system

04:30 kicking in. On the back axle, you've got two electric motors, and they're effectively working

04:36 in unison to give you the feeling of an electronic limited-slip differential. It's quite playful as

04:44 well when you sort of really get into the throttle out of a corner. And this is an interesting setup

04:50 because typically you have a single motor on the rear axle. This uses that twin motor setup. It can

04:56 then do things like drift mode, and it can just be, you know, I'm actually just struggling to

05:04 watch here because we are absolutely flying, and it is, yeah, it is just sticking to the road like

05:10 nothing else. So beneath the skin, you've got a battery that's a little over 60 kilowatt hours in

05:15 size, and that's the thing that's giving you that big propulsion. But then what happens is the

05:21 hydrogen fuel stack can kick in and give you almost 100 kilowatts extra. So it really sort of

05:27 picks up and goes nicely. And given this is a prototype, it actually feels remarkably good here

05:34 behind the wheel in terms of being a complete vehicle. It is seriously impressive. So, wow,

05:41 look, this has been a really quick experience, but I've got to tell you, if they can perfect this

05:45 technology where you can have an EV system that works in unison with a hydrogen fuel cell,

05:51 I don't know, you can just do some really cool things. And at the end of the day,

05:55 the only thing you're emitting is water from that whole equation, which is great.

06:00 So we've now gone to track mode. This allows the rear diff to feel, well, I guess the rear

06:06 diff, I keep calling it that, but it allows the rear axle to feel like a limited-slip diff because

06:11 you've got the two motors there. They can then individually control each wheel to give you that

06:15 acceleration out of a corner. So see how that feels as we sort of roll onto the throttle.

06:19 Oh, far out. So in track mode, it's going even harder. It's pinning you back into the seat.

06:32 Far out. It is absolutely moving. And now as I'm getting onto the throttle out of these corners,

06:42 I can actually feel it sort of tucking in as we go. So there is actually an effect there.

06:48 Oh, God. All right. So I know that I talked a whole bunch of gibberish there. It was really

06:52 hard to concentrate not bidding this car and keeping up with the guy in front. So

06:56 it is a remarkable setup. And I think that this tech is really interesting in terms of

07:04 where it's going and what they're going to achieve with it. So I'm excited to try this

07:10 in an actual production car to get a proper feel for it. But here in prototype form, this is,

07:15 I don't know, this is really something else. And I think that they're onto something here. I love

07:20 the fact that this is using so many different technologies and binding them all together

07:25 in such an exciting and fun way. So yeah, that was bloody unreal.

07:29 OK, so I've just finished my lap. I haven't broken the car. They're just checking it before

07:36 other people hop into it. I have a feeling I didn't cover everything while I was driving.

07:40 So I thought I'd quickly run through just some of the key stats. So twin 235 kilowatt motors at the

07:46 rear. So the rear is basically driving cars, rear wheel drive. Over 500 kilowatts when both of those

07:52 systems combine. 900 newton meters, almost a kilonewton of torque. You get torque vectoring

07:59 through those e-motors. So what I was talking about out there was that experience of tucking

08:02 into the corner, getting on the throttle, and then it really just sort of hunkering down and

08:06 pulling it out of the corner. That's the advantage you get with the twin motors. You can't really

08:10 achieve that with a single motor set up on the rear axle. 62.4 kilowatt hour battery, T-shaped

08:15 beneath the chassis there. Again, predominant weight over the rear. Over 600 k's of theoretical

08:20 driving range. So under that little visor at the back there, you've got two 4.2 kilo hydrogen tanks.

08:26 So they give you the propulsion. But in addition to that, you can also charge this through 800 volt

08:32 DC or AC charging. So it means it's just like other cars on that architecture in terms of being

08:36 able to top it up. You can either go down the path of that or put hydrogen in it. What else

08:41 have we got? So the emission from hydrogen is just water. So while the car is sitting there,

08:46 it is just putting water onto the ground, which I think is incredible stuff. During regular driving,

08:51 the battery runs the motors. The hydrogen fuel stack can then charge the batteries. It can act

08:56 as a generator. But under full throttle, the fuel stack can provide a voltage boost. And that

09:00 basically allows you to draw more current from the batteries and send it to those electric motors.

09:04 And the other interesting thing as well is, given heat increases with the square of the current

09:09 drawn, you're able to basically then use the fuel stack when you don't need to use the battery. So

09:14 in these conditions where you're on and off the throttle, instead of just overheating the motors

09:17 in the battery system, the fuel stack is able to then chip in a bit of assistance so that you can

09:22 cool everything down. So seriously remarkable experience. And I'm keen to see where they go

09:27 with this. At the moment, they're saying it's just a concept and it may not ever make it into

09:31 production. But to me, I love this tech and I love that they are thinking about it and not just

09:36 thinking about EVs. I think it is pretty cool stuff. So if you did enjoy this video, please

09:40 make sure you like it and share it with your mates. And if you haven't done so already, subscribe to

09:45 our channel, press the bell icon. That way you can find out every single time we do one of these.

09:48 But until next time, take it easy.

Category

Transcript

Recommended