This one comment caught my eye
Britcarguy 310
The Europa suspension, wheel, and tire size combination were designed to meet a certain level of stress. Adding wider wheels and tires upsets the balance and could cause suspension component failure especially the rear uprights. Get new tires for the stock rims and drive to the max. Having said that my 74 on stock rims had a rear upright fracture at about 70 mph luckily on an empty road. Car did a 540 degree spin and tore up rear bodywork on one side. Should I have inspected the suspension better? Yes.
That must have been a wild ride....