I'm of the opinion that if motor car manufacturers linked the volume control of the ICE (In Car Entertainment) to the speedo, they could in turn lose 100kg (OK it's 2kg but I'm making a point) of soundproofing from under the hood, resulting in cheaper vehicles, improved fuel consumption, fewer emissions and overall be nice to the planet... remember you heard it here first!

Bah, who needs Unleaded, Catalytic Converters and alternative energy sources when you've got lateral thinking....