Twin turbos (a small one and a larger one) is another way to have the low end power of a s/c and the top end potential of a turbo. Most aftermarket turbo kits only use a single turbo. Given the choice of a single turbo or a s/c, I personally prefer the s/c for normal driving because there is more torque when just crusiing the streets. Torque is what you feel when you take off from a stop and torque is what gets the car moving. that is why a s/c equipped car just feels like a larger engine. If I only drove on a dyno or didn't care about speeding tickets, I would go with the turbo.