Surprisingly, it appears to hang in fairly well showing just how quick of a car the 911 Turbo is. Unfortunately this short drag race by Top Gear does not provide us with any data which they are likely saving for their magazine or TV show. The 918 Spyder has been tested by Car and Driver at 0-60 in 2.2 seconds and through the 1/4 mile at 9.8 @ 145. Car and Driver tested the 991 Turbo S with more power than the standard 991 Turbo to a 10.8 @ 126.
Yes, the 918 Spyder is much faster. It better be for over a million dollars.