I suspect there is a vast difference between the earlier 3 litre Roadsters and the later 3.7 litre cars.
I was going to buy a 3 litre but they had just gone out of production and I considered the 3.7 too much for the car weight and chassis. Personally I think 200 HP or thereabouts is as much as I would want in a trad.
I can get myself into as much trouble as I want with 180 HP