If it's anything like the past cars, it will be light, and 385 HP will be plenty to have fun with.
The most recent M3 was like 3700 lbs IIRC (and I'm someone will correct me if I don't) and the Cayman is well under 3000 lbs.
Light cars are better. You can always add more HP to a big boat of a car to get the job done, but the best is a light car with enough power.
Guess how much HP a diesel locomotive has?