[Aerkuld]

Creative interpretation of the rules is what it's all about. It isn't what they say you can and can't do, it's what they don't say that matters.

Back in the IndyCar / CART days the engine rules said something to the effect that the valve springs must be steel, not titanium. At the time F1 were in the process of moving from titanium springs to pneumatic valve springs. Clearly titanium was out, but what the CART rules didn't say was that you weren't allowed to use something to 'help' the steel springs. The idea - design a head with sealed lifters which used compressed air from the turbo to assist the steel springs. It was a complete design but it was never actually built, although the logic seemed perfectly reasonable.

There's been so much stuff we heard about over the years as people moved from team to team. Some of it was blatant cheating, but most of it was being liberal with the interpretation of the rule book, and reading between the lines.