The 16v is a Sportwagon on an 04 plate, it rotted through the middle of the floor, it looks like the rot started where an additional plate has been added from above during production. There were four holes drilled in the floor, and an extra plate (for stiffening?) has been added from above with 4 captive threads that pass through the drilled holes and stick out underneath the car. I'd never noticed it before, so checked a few other cars in the workshop and none had it except an 04 plate saloon. So maybe its a change they brought in after the factory was shut Sept-Nov 2003. Worth keeping an eye on it on late model cars. Also the left-most two drain holes were rotted and needed small plates welding in. The 147 8v is absolutely solid, no sign of the rot at all, and its also an 04.
The clutch used in both cars is a sprung clutch rather than a solid one so that should help with keeping down vibrations. The 8v 147 is a courtesy car so it will be a good test, they always get a hard life.