For decades, the words "classic car" conjured up a fairly predictable collection of images. An MGB on a country road, an E-Type outside a country pub, a Triumph, Austin, an old Rover or perhaps something with enough polished chrome to require its own cleaning cupboard. But wander around a classic car show today and something is changing. Parked alongside those traditional classics you'll increasingly find Ford Sierras, Volkswagen Golf GTIs, Peugeot 205s, BMW E30s, Volvo 240s, Toyota Supras and cars that, not all that long ago, were simply everyday traffic; and people absolutely love them. So, are the cars of