So true. i just bought an old Sierra 1.8LX for £100 and underneath is absolutely immaculate, no rust at all, not on the floor, sills, crossmembers, gearbox mounts etc, in fact the jacking points don't even look used!...

anyway the engine had an oil leak and it covered the entire underside
i've got a 2.0 in it now though so it's all good.

i love oil leaks!