‘..The most recognisable thing, apart from the seven fire extinguishers, is the 5.0-litre V8 engine from the Jaguar F-type sports car, which will run the fuel pumps, delivering more than 800 litres of high-test peroxide in just 20 seconds – the rocket motor’s burn time.
The jet engine from a Typhoon fighter plane occupies the car’s top floor and provides nine tonnes of thrust, while underneath is a single Nammo rocket motor providing an additional four tonnes.’   LINK