I have one in bits.... (new bits
)
A great car, but yes it used to fall over due to being so narrow, also the chassis broke at the rear, so much so that Brian Stacey (then owner of T.O.P) made a carbon plate that went under the tranny which I still have somewhere - it must be the thinnest bit of carbon you've ever seen!
As I keep telling terry, it didn't come with the Hydra as stock, but it was an option
Release was late 1992, price £194.95
Hope that helps