The question is, why do you spend 61K to make an A500 a bit quicker? Shave 1 second off 0-60? WOW SUCH IMPRESSIVE.
I'd rather keep the A500 standard and then get an ariel atom if it's acceleration and crap like that you want.
Or a GTR. Or even an R1 mini cooper pushing 4 secs 0-60, much more fun, for 12k.