Answer: Although roots superchargers have significant parasitic load and do dramatically decrease fuel economy, centrifugal superchargers will yield approximately the same fuel economy as normally aspirated engines, under normal throttle conditions.
The M8 Gran Coupe is the quickest, at 3.1 seconds for the standard car and 3.0 for the Competition, but the Mercedes isn't far behind. ... Drivetrain and performance.
A ProCharger supercharger system takes this powerful V6 and elevates well beyond its V-8 brother. On just a small amount of pump gas friendly boost, ProCharger supercharger systems gain 50% or more on just 7psi of boost!15 mar 2019