The car will be available in both road and race trim and in the summer will be used for an assault on the Nürburgring lap record for a road car, which has been held since 2009 by the Radical SR8, which lapped in 6min 48sec in the hands of Michael Vergers.
The RXC Turbo 500R is based on the extant RXC Turbo but comes with new turbos, indirect and direct fuel injection to boost power to 600bhp in standard form, but with a further 100bhp available as an option.
In addition to the extra power, the new RXC Turbo 500R comes with full carbonfibre bodywork, said to lower weight by around 60kg, giving a kerbweight of almost exactly one tonne.
The car will be available first in a stripped-out, limited run of 21 cars to signify the 21 kilometres of a Nürburgring lap, but the mechanical enhancements will then be made available as part of the normal range. The RXC Turbo 500R is priced at £167,500 plus local taxes.