Iv been in a charged Clio running 275 and the power delivery was amazing. No waiting for boost to build then when it comes in sitting their spinning the wheels. Its just out and out acceleration. Far more usable power than a turbo.

Saying that with you being RWD id go turbo as you can put big turbo power down on the tarmac and price for price its going to cost the same but with far more potential running turbo.