This rare and original 58 year old Jaguar XJ13 prototype engine sits at the heart of our ‘True Spirit of XJ13’. Showcasing the very best of a golden age of British Automotive design and engineering. The engine has just completed its Rolling Road Testing, thanks to the incredible JD Classics team! Guess what’s next! Time for The Stig? You can order a copy of ‘The Story of XJ13’ Book by Robert Perry, here: https://rb.gy/4unouk #spiritofxj13 #classiccars #engineering #jaguar #xj13 #v12power #unleas

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The world's fastest car was actually a mistake. In the 1980s, Jaguar promised wealthy buyers a V12 hypercar called the XJ220. But when it arrived in 1992, customers were shocked to find a smaller V6 twin turbo instead. Lawsuits erupted as buyers felt betrayed. Here's the twist. That downgraded engine was actually better. The lighter V6 pushed the XJ220 to 217 miles per hour, crowning it the world's fastest production car. What began as Jaguar's biggest PR nightmare transformed into automotive le