Which is faster?

The Porsche 991.2 GT3 Cup is faster — 0.4s quicker on average across 7 shared tracks.

Specifications

Specifications	Porsche 991.2 GT3 Cup 991.2 GT3 Cup	Radical SR3 XXR SR3 XXR
Model Years	2017-2021	2023
horsepower	485	232
torque (N_M)	354	175
weight (KG)	1,200	620
Power to Weight	0.4	0.37
Rank	#11	#12
Tire	40 PILOT SPORT CUP N3 275/645/18 / 305/645/18	100 ZZS 205/580/15 / 265/600/16
engine Description	4.0L Rear-mounted six-cylinder Boxer Engine	four-cylinder hand-built RPE racing engine
gearbox	6 SPEED SEQUENTIAL DOG-TYPE GEARBOX WITH PADDLE SHIFT	6-SPEED SEQUENTIAL
drive Type	RWD	RWD
width (MM)	1854	1799
length (MM)	4572	4077
height (MM)	1270	1093
0 - 60 MPH	3.1 SECs	3.1 SECs
top Speed (KPH)	283	237
price MSRP	$ 263,182	$ 107,990
Current Value	$ 200,000	$ 107,990
RACE	Yes	Yes
OVERALL VS AVERAGE LAP TIMES	-11.87s	-14.71s