Please enlighten me. Is the Redline engine turbo charged, or super charged or both? I thought turbo charged and super charged were the same thing. I never knew there was a difference until I read an article about the VW TSI engine which combines both - a super charger for low RPM and a turbo kicks in for for high RPM. Apparently a computer selects when to switch smoothly from one to the other to give torque and power across the whole RPM spectrum. The design sounds like the optimum for a small direct injection engine. Which engine is the Redline?