I've seen a lot of mid-sized late model (latest models) cars and SUVs like BMW, MB, Volvo, Lexus, Alfa Romeo etc have 2.0 Turbo engines. After all these years I am still confused about Turbos. I noticed in my Jaguar, if I floored the gas pedal, there is a 2 second delay and of she goes like a cat running for it's life. Is the Turbo still in full operational even the car already reaches the highest speed? Are Turbos just a speed booster? Please enlighten me. Thanks fellow members