In one test...and the car is wearing 100 treadwear tires in that test. The brakes are smaller than the GT350 and the car weighs more. The only thing that will improve the braking are suspension tuning, abs tuning, and the tires. Those three have improved, but I'd be interested in seeing how fast a GT350/GT350R would stop on those same tires.This is the best stopping car in the world you know that right ? 60-0 in 86 ft it stops faster than a Turbo S. The Dark Horse is actually very capable out of the showroom floor at least judging by the few track tests that Terry Fair is doing with his car. Overall it's impressive besides the digital displays (though if they can show tire pressures and CHT at the same time it will be magic) and price tag as 70k+ for a Mustang that is not a GT500 sounds like a lot of money.
Motor Trend's Dark Horse test seems highly suspect. Compare their figures to Car and Drivers figures among the various Mustangs. Dark horse goes from 2nd best Mustang despite having much stickier tires to suddenly stopping better than any car ever tested by over 10 feet.
Same could be said about the GT4RS in Car and Driver's test where it stops 12 feet faster than a Z06, but 1 foot longer from 60 with Motor Trend.
Car and Driver GT500 CFTP - 70-0 - 150 ft
Car and Driver GT350R - 70-0 - 146 ft
Car and Driver C8 Z06 - 70-0 - 144 ft
Car and Driver Dark Horse - 70-0 - 142 ft
Car and Driver Mach 1 HP- 70-0 - 141 ft
Car and Driver GT4RS - 70-0 - 132 ft
Motor Trend GT350R - 60-0 - 97 ft
Motor Trend Mach 1 HP - 60-0 - 96 ft
Motor Trend GT4RS - 60-0 - 96 ft
Motor Trend C8 Z06 - 60-0 - 95 ft
Motor Trend GT500 CFPT - 60-0 - 94 ft
Motor Trend Dark Horse - 60-0 - 86 ft