Five for the road, two for the track

摘要

At this year's Detroit auto show, BMW unveiled the much-anticipated M4, while about 200 feet away, Lexus debuted its radical new RC F. Both are high-performance 400-plus-hp coupes that will go head to head on the street and track in the coming months. I sat down with the two men behind each-Albert Biermann, vice president of engineering, BMW M, and Yukihiko Yaguchi, deputy chief engineer, Lexus F-and posed the same five questions. Their answers might surprise you.