This is a production car... Radical has a 30,000square feet factory in the UK offering 6different models of which only the SR9 LMP2 can´t be registered for street use!
Since 2005 this car officle holds the lap record for the fastest street legal production car around the Ring... no matter what Viper ACR fans, car manufactors, GT-R fans, ZR1 fans claim... BTW Radical recived in 2004 10orders for the SR8 befor the first car was even shown to public..
.... From the Radical homepage...
The Radical SR8 is quite simply the world’s fastest production sportscar, holding the lap record around the world’s longest and most arduous track – the Nürburgring Nordschleife. Performance is provided by the unique Powertec RP range of engines which includes superbike technology in the cylinder heads and Formula 1 technology engine internals. Since the Nürburgring lap record was achieved in 2005 the SR8 has undergone continual development. Radical have improved the aerodynamics, safety and serviceability of the SR8 while Powertec engineering have developed the engine from its original 360bhp to the current 380bhp for the 2.6 litre SR8 Supersport and 460bhp for the 2.8 litre SR8LM. Drivers requiring the best two-seater track day car money can buy need look no further.
they even offer leather seats as an option ....
BTW they have sold over 400 cars since 2002 from one model allone and you claim this not to be a production car ... LOL