The main difference between the top two performance versions of the Tesla Model S is simply 5 kWh of energy capacity. Tesla used to offer the Model S P85D, a performance (P) Model S with a 85 kWh battery pack (85) and dual motors (D). The vehicle’s top performance mode was called ‘Insane’.

The automaker later introduced a new version, the Model S P90D, which is the same car, but with a 90 kWh battery pack. When introducing the new pack, Tesla also introduced a new performance mode, ‘Ludicrous’, which is obviously better than ‘Insane’.  expand full story