Besides the "Lotus" LMP2, also a peek to how 2014 cars will look (in another words, just by looking at the picture you probably don't realize that the overall dimensions has been reduced, tyre sizes reduced to P2 size and cockpit shape/size altered).

Rebellion will likely be announcing an in-house 2014 project - at least that's the strong rumor.

Not sure if that will be with Multimatic and the Lola name or if they'll do their own work.

didn't know that

this is top motorsport, it should be about making the cars quicker in cornering/braking and not this constant "holding back"

The current braking and cornering grip was insane as it was, especially in mid-to-high speed corners. You can't imagine how quickly they decelerate and turn in until you see it in person. The tyres were already the largest used in pretty much any series globally - I'm glad they've reduced the tyre size, honestly. Should change the behavior of the cars pretty significantly.

The tires are not that big.

LMP1 rears are 37cm afaik, the same as in F1

Group C cars tires looked even bigger than what we have now, I don't think it was imperative to change it but I'll wait to see the effect of it

(I know its in French), but Wolf Racing Cars is building a Daytona Prototype for the 2014 United Sports Car Championship.

http://www.endurance-info.com/version2/ ... 18351.html

Afaik (and straight from the regulations)...

F1 w 15" (front 14"), d 26"
P1 w 16", d 28.5"
P2 w 14", d 28"

w = width, d = diameter


Don't trust your eyes, as especially the shape of GrC cars made them appear smaller (but they were not) making the tyres appear bigger. But the tyres were not bigger: max width was 16" (source: this from 1991 meaning it was same for both C1 and C2)

Well, I don't know if regulations changed or whatever, but I read a while ago on mulsannecorner.com, in an article regarding Pegeout and Audi LMP1 of 2009 or something, that they had 37cm width rear tires and that they introduced a new Michelin wider tire at the front measuring 36cm iirc.

For sure the diameter of current P1/P2s are much bigger than that of F1s, but P1 tire's width are really the same as F1's rear's, me thinks

Anyway, that's quite a irrelevant discussion and is probably ruining the thread for the others

Couldn't find that from Mulsannescorner, but the regulations has not changed. I guess the Michelin tyres (the off-the-shelve versions at least, which are probably not the ones actually Peugeot/Audi/Toyota used/uses) are simply not the max allowed size.

Found this: http://www.michelinman.com/mediabin/App ... ge2011.pdf

33/65 - 18 539P LMP1, front
37/71 - 18 490P LMP1, rear
LMP2/SR2 (front) 27/65 - 18 or 30/65 - 18, (rear) 31/71 - 18

(For sure "rears on front" trend cars are not using the above front tyre anyway... possibly the 36 cm version then as you said)

The ultimate irony is that with Peugeot and Audi's adaptation of the wide fronts concept just a few seasons later Michelin did end up manufacturing proper wide front compounds.

I was no longer disagreeing, so simply the regulations would allow a bit bigger ones but probably for some very good reasons the Michelins are not. The earlier max sizes I posted are correct, directly from the regulations, just rounded to inches.