Not by any definition of "ace" that I'm aware of, they aren't.
They're midly entertaining, in so far as the fear of dying backwards on fire in a hedge with the added embarassment of the whole thing happening at 18 mph is entertaining
( the mighty badger Aphrodite, on a bar stool, by your side, Mon 18 Feb 2013, 15:11, 2 replies, latest was 13 years ago)

Exactly Ace

( hartley hare Just some prick who thinks it doesn't apply to him, Mon 18 Feb 2013, 15:18, Reply)

hahahahaha!

( sporters I’m sincerely gratitude to you, Mon 18 Feb 2013, 15:24, Reply)

Mine used to oil up the plug on the third cylinder every 100 miles or so
because of worn rocker gear - so my through-the-hedge-backwards-on-fire antics were restricted to 11 mph.

Say what you like, designing the rear suspension to make you lose all rear end grip during braking is a work of a genius.
( the mighty badger Aphrodite, on a bar stool, by your side, Mon 18 Feb 2013, 15:32, Reply)