1. Turbo/Supercharging is gonna bite you on the butt with insurance. 2. What year/model and engine is your sportivo? 3. If your talking about those heavy **** 99 - 2000 model sportivos I wouldn't even bother charging them. they weigh a ******load and not worth the money. Unless you talking about the new 04 onwards sportivos. Then go turbocharged (based on revs). mmm yummy yummy boost!