Jaguar XJ Supersport is the most powerful XJ model by its 5-lt supercharged engine with 510PS of power. Unfortunately, these figures are not suitable for a taxi. It would be too expensive to run and pointlessly powerful! It is similar to use Louis Vuitton luggage set to travel around the world in economic class. However, Louis Vuitton luggage set has a place to be used and Jaguar XJ has a place to be driven as a taxi.
Recently Jaguar revealed a taxi for Nürburgring, XJ Supersport with Sport and Speed Pack (The Sport pack sounds a bit funny after Supersport). Sport pack provides, sport seats and exterior changes to emphasise sportive character. Speed Pack increase the speed limit from 250 KPH (155 MPH) to 280 KPH (174 MPH). As this XJ will be taxiing around the one of the brutal circuits in the world, the interior features a roll cage with four-point seatbelts!
Unfortunately, I couldn’t find information about what XJ Nürburgring Taxi will do but I am sure it will be similar to BMW’s M5 Nürburgring Taxi. BMW was offering a quick lap with the M5 around the circuit. Probably, Jaguar will offer the same.