Re: 360 GT vs 360 Challenge The 360 GT is designed to race in the FIA and ACO events whereas the 360 Challenge is meant for privateers in the Ferrari Challenge series. The GT is more expensive (~$410,000) than the Challenge (~$183,000) but also more powerful @430hp vs. 400hp. This equates to a 0 to 60 of 3.5 sec and 1/4 mile in 12 flat for the GT and 3.9 sec and 12.5 sec for the Challenge. The increased power is a result of different pistons w/ an increased compression to 13.1:1 vs. 11.0:1 which is the same as stock modena. The brakes are 15.0 in front and 13.1 in rears in the GT vs. 14.0 in front and 13.0 in rear for Challenge. The GT is 400 lbs. lighter @ 2450 lbs than the Challenge. The front track is widened by 3 inches and the GT receives stiffer springs and shocks and wider anti roll bars.