It's the Lexus IS-F, BMW M3, Mercedes C63 AMG, and an Infiniti G35 this time on Best Motoring. Which is fastest? Hint: It isn't the Infiniti.
Sometimes I think Best Motoring is rigged. The IS-F takes an early lead, because of course it does, and the G35 doesn't fall back like a lead weight immediately. I found it curious.
But by the end, order is restored and all is right with the world.