There are two types of modern supercars:

Anything that is a twin-turbo V6 or V8 from Ferrari or McLaren (296/Artura for the V6, 488/F8/SF90/650S/675LT/720S/765LT for the V8), as well as grand tourers like GT (McLaren model, not to be confused with AMG or Ford), R8, 911 Carrera GTS/Turbo/Turbo S, V12 Vantage/DBS, Roma/812, and such belong to the top category:
* ones that have a higher speed-to-circuit ratio

The Z06 and ZR1, the GT3/GT2/RS, as well as the 570S/600LT/620R, Huracán/Aventador, Viper, 458 Italia/Speciale, MC20, AMG GT C/R/BS, and Ford GT and such belong to the bottom category:
* ones that have a higher circuit-to-speed ratio

This does not include press cars that have remarkably quicker performance than its customer-owned counterparts, or those that can achieve crazy 9- and 10-second quartermile times only on a prepped dragstrip (such as the 10.4s C7 Z06 or the 10.9s F458).

I saw a 650s side by side to a 458.
I was really impressed of how it looks. Yeah, it's a facelift for the MP4, and it wasnt really necesessary change the name. But it looks fantastic!!!

Im still at odds about it.

The more I look at the 650S from different angles in videos, the more I like it. I am actually starting to think that it was a very good redesign. And 99% won't tell the difference between it and the P1.

I saw a P1 and a 650S on the road last night..... very impressive sight but very little sound.

@NIN Yes I did say that NIN. I am not some 10 year old gutless fanboy. But anyway, thats an interesting pic you found. Where did you get it? I think GM has definitely proven that that their choice of suspension setup is formidable considering the results they get.

@ V8Supercar1

You did write "...feel free to correct me..."

OK, the C7 does still use a transverse composite leaf spring front and rear but it is NOT like the leaf spring in a pickup truck.

It does, however, have magnetorheological suspension dampers that make damping adjustments every 10 milliseconds.

@NIN I think pdk also comes in different forms and the fastest and most aggressive one so far is on the new 2014 911 gt3. That one is def faster than GM 8 speed auto

@Piorun: Corvettes do not have leaf spring suspensions anymore. They have a magnerhetorical suspension (magnetic ride control) which is one of the fastest reacting suspensions their is. Someone feel free to correct me if im wrong.

It will be interesting

Leaf spring vs hydropneumatic F1 suspension

Maybe You dont need new technology, just use old stuff in right way.

@ V8Supercar1

GM is only claiming that the 8-speed in the Z06 upshifts quicker at wide open throttle (WOT) than the PDK. This is because the "twin pump" (or whatever it's called) hydraulic system acts differently at WOT than in "normal" driving situations.

I don't know what the timing procedures are or how the times are measured. I also don't know which version of the PDK GM used as a benckmark. I doubt that it was the PDK-S but whatever the microseconds, GM did a good job with what they had. A DCT wasn't possible at this time in the Corvette. Maybe in the future if the weight/size of a DCT is reduced.

@Flabernat: I don't think GM is lying when they say their gearbox shifts quicker than one of Porsche's pdk. The gearbox in the current stingray takes about 200ms. Not great, but not bad either because its still quicker than any human can shift a manual. I truly think the new Z06 is gonna force SRT into outsourcing a DCT from one of Fiat's suppliers for the Viper, possibly the ACR.

V8Supercar1
Well the 505hp C6Z06/Z07 kept pace with the 590hp Mp4-12c quite well. Now the C7Z06 is supercharged to over 600hp, and GM claims their 8-spd auto is as fast as a DCT(we'll see).... That said, it'll be a monster of a battle! I think Porsche and Ferrari are going to be playing catch-up. I'd love to see the C7Z06 vs 650S vs Viper TA... :D

@BR2+: Im not saying your wrong. For the record. According to Mclaren, this car's DIN weight is 3,148 lbs, dry weight is 2,932 lbs. http://650s.mclaren.com/650scoupe/specification.html

lol you say that as a petrolhead, but as an owner of a 12C, OF COURSE you want the new upgrades... and I shall check them out when they do come in the summer

Upgrades are good when we talk about the same model that has some uptades.

But i dont like these free upgrades when we talk about different models like MP4 and 650S.

Mp4-12c should stay Mp4 and 650S should stay 650S.

If it had 800hp it would sure be laggy. but at 650, it's very responsive still.

I doubt the Z06 will be as fast all-round on the track as a 650S. And the 650s will be much nicer, elegant, and comfortable. The 650S will munch Z06s on the drag strip every time.

At the end of the day, one is a Chevy with plastic/fiber glass body, and the other is a piece of precision engineering, (but possibly full of reliability issues that will be fixed for free).

However, there's also one underlying thing... Is Mclaren going to give free upgrades to their cars again? That could well be the deciding factor. Buy a Porsche and there's a facelift model a couple years down the road. Mclaren, you get free upgrades.

They have 600-650 bhp because they dont need more. They dont need more power in this car in this segment and in this price range. And they dont need more power because it is still an insanly fast car even in its 600 hp version...much faster than the best competitor - 458 Italia.

And you have P1 that has performance like from petrol heaven...

Answer me this:
So You appear in the DESIGN HEAVEN You can create totaly new car from every part. You can chose where the engine will be, the chasis, engine size, turbos or not, design of interior and exterior.
You do not have any predecessor so You dont have to improve anything or go with any tradition. And you have F1 technology.

I would love to be in that situation, You can create modern perfect car that You want.
And McLaren was in that situation. And what they create?

You can give a name so You will give 12C-MP4? WTF? Just look how Lotus or Aston names their car, its exciting.
You can create engine, It can have 9.0 NA V12, 6.0 NA V8. And they chose 3.8 laggy with 2 turbos? WTF?
You can give power You like and You will give 600 insted of 800 or more? WTF?
You can chose how it will behave, and You will chose that it will not slide sideways? WTF? Why? Why not make a fun to drive car?
You can chose how it will be look, drive an everything, and You create MP4-12C? WTF? Why, why?

McLaren was in the best possible situation and they create so weird car... and now they give it new bumper, re-programed soe things. yea its better but please. They fooked it up hard.

This doesnt weight 2900Lbs, Not even below 3100Lbs, Lighter then the MP4 yes, But barely, Its a good car cant question that, But i dont think its £47,000 worth it over an MP4, Thats a huge difference. And still, That lazy butt ulgy look its got, Too me any way.

I also think this will lose to a C7 ZO6 round a track.