got race?

[Petrus]

Stumbled on a link with cool photos of Spyder racers, enjoy;

https://smg.photobucket.com/user/Alessiogallo/media/MONOCRAFT%20GT300%20CARS/jgtc-mrs6-1.jpg.html?sort=3&o=40

[JB21]

All with 16, 17 even 18" wheels as well...but bigger wheels ruin the MR2 on track 

[Call the midlife!]

I 

All with 16, 17 even 18" wheels as well...but bigger wheels ruin the MR2 on track 

I think it's the difference between a full tilt "race car" like the ones in the photos and a "track car".
 I don't imagine you'd get away with anything smaller with the power/set up they're all running.

[Petrus]

I don't imagine you'd get away with anything smaller with the power/set up they're all running.

F1 can ;-)

Point is that the rim diameter is a compromise working together with other modified set ups within the limiting framework of SuperGT rules.
Take the brake disc size. They must upgrade the brakes but cannot go carbon nor move them inwards.
Bigger brake being more beneficial than smaller wheel is an example.
Same thing overall wheel diameter versus side wall hight. A lower sidewall may be more desirable and larger rim diameter a consequence with smaller trade off.
Thing is that they had a lót of freedom in the suspension and geometry which opens up a world of choices whereas on the production car it is a given.

[Call the midlife!]

I don't imagine you'd get away with anything smaller with the power/set up they're all running.

F1 can ;-)

Point is that the rim diameter is a compromise working together with other modified set ups within the limiting framework of SuperGT rules.
Take the brake disc size. They must upgrade the brakes but cannot go carbon nor move them inwards.
Bigger brake being more beneficial than smaller wheel is an example.
Same thing overall wheel diameter versus side wall hight. A lower sidewall may be more desirable and larger rim diameter a consequence with smaller trade off.
Thing is that they had a lót of freedom in the suspension and geometry which opens up a world of choices whereas on the production car it is a given.

Note I said the power and set up they're running, F1 are running a totally different power and set up so can't really use that as a yardstick when comparing an Mr2 racecar against an MR2 track toy.

But I take the point on board.