When it comes to tuning a car, more is usually better. Adding more fuel, more air, and more turbo boost are the typical methods of getting more power out of a car. But what about adding more engines?

Tuned cars don’t get much cooler than a classic Volkswagen Golf Mk1 with a V8 engine strapped under its hood, right? You might be tempted to say ‘no’, but bear with us, because this example features ...