Despite the power ratings being quite different, real-world acceleration results say the engines are much more closely matched than expected. Car and Driver tested each and only saw a one-tenth of a second difference in 1/4mile acceleration in favor of the Supra. The Supra, however, trapped at 113mph, and the M2 Competition 116mph. Looks like the 70 additional horsepower in the M2 Comp isn’t doing all that much. And while the B58 will never have the M coolness factor, it is clearly the newer and more futuristic design of the two. It’ll be interesting to see if the next-generation M3 and M4 engines move more towards the B58s modular design.