You can always find someone who has a faster car...
But it is not just about how fast you can get away from the lights... but also about mid-range performance, grip, handling poise, style etc. etc.
Frankly, > £40K on a hatchback, no matter how much it has been fettled... I think I'd rather have a Boxster, Cayman new than either... and then if I were to look used, at that price it brings a whole load of proper sports cars...
They might not be faster 0-60 (although they could be) but in almost every other driving respect they will likely be much better.
I understand that people want a practical fast car... but once you're getting to the sort of sums you're talking about, I have found the two car method much more fruitful...