Tim.Wright wrote:
Brake material has very little to do with braking acceleration. Carbon brakes are all about weight saving. Your braking performance is defined by tyre grip downforce & drag.
Once you reach the required 3-4g in cornering you will already be at around the required level in braking. You normally get more longitudinal grip than lateral grip for various reasons. In addition an active aero solution could supply the >1G in braking that comes from drag at high speed. So you only need around 3-4g from the tyres.
While adding extra tyres would solve a lot of the problems it's also going to add too much weight. Consider that the unsprung mass of an "axle" (2 wheels + suspension) is in the order of 80-100kg per axle - it's a bit of a show stopper.
The only viable path I see to get the performance would be LMP1 tyres and a <1000kg car. At this point its no longer street legal or a luxury car but it's already pretty clear that there is going to be some sort of cop-out if they want to reach F1 performance.
AFAIR, the original McLaren F1 road car was designed to not exceed a tonne. luxury ,or no..
As for carbon brakes, naturally the weight of vehicle/stopping requirements comes into play..
..since even G.P. bikes weighing 130 Kg (plus rider) used them for their non-fade performance..
I have to agree, though, the seemingly fanciful notion of a practicable road-legal car lapping quicker than an F1..
..Q - pole time-wise, around any given track.. including corners.. not just straight lining/top end - is simply implausible..
Check the current modified production sports car class.. even stripped down, lowered, & with non-road legal
aero add- ons/noise-levels/emissions concessions, they barely match the current (limited) Moto GP bike lap times,
let alone 'bout any F1 lap times since downforce became S.O.P.. ..as the Aussie truism relates.. "Tell 'em.. they're dreamin!"