I'm not usually one to join in these discussions, I don't want to become one of those competitive guys...but I had a play with a 63 plate Golf GTi and a '59 plate Mini the other day, Mini was in front and moved left to let us pass, easy pass tbh, no idea what engine though! But what surprised me is the Golf couldn't shift me!! I let off at 'some' mph (got caught in the moment, wouldn't recommend it!) and he kept pulling but I honestly didn't think I'd keep up to 70 let alone any further! I then settled to 70 and the Mini eventually came past about 80ish lol.
So yeah, it might be your driving Matt!
So yeah, it might be your driving Matt!