The Gravity will never be faster than an Air Sapphire due to weight and aero. Even a Rimac with 2000hp is not any faster than a Sapphire due to traction limits. With the current electric cars, we are basically at the limits of street legal acceleration. Current street legal tires can only put down so much power, even with the current sophisticated traction controls of Sapphire or similar cars. At this point the only improvements can be by dropping weight or putting drag slicks. Or use a vacuum system like a McMurtry.