Will, you live in London, its 0-4, not 40...
As everyone else has said, yes I like having a quoted 0-60 of less than 6 seconds, and in all reality I can probably do in in little over 6 from the ever truthful bum dyno, but the zed isn't meant for that really, the gear changes are far too clunky to be 100% reliable, however if you make some quick changes to get out of 1st and second and get it into 3rd doing about 40, floor it, almost nothing short of turbo'd cars will stick with you, this is where this car shines.
It would be pretty good on a rolling 1/4 mile against other cars. Im happy with the zed the way it is, im quite happy now to pootle along on dual carriageways doing 70-75 rather than all my other cars where id never drop below 80. I know the zed has that immediate power at speed if I need it so I don't feel the need to continually go at warp speed.
@zippypooz - Perhaps its been remapped, Rev-Up for example.