Hmm maybe I'm mis-remembering as I haven't so much as looked at the thing in a few years but I'm pretty sure it's faster than eight miles an hour. It was certainly a fair clip. I bought it specifically with 'all terrain' capability in mind as she wanted to be able to drive the rough road where we would take our dogs walking so it's got high ground clearance and big tyres and, as is 'road legal'. Whatever it's actually top speed it was easily enough for it to get out of hand if the driver wasn't careful as the wife proved and I don't think she ever got it up to full speed. I do remember that there were two 'modes' on it with the slow mode being shown on the dash with a tortoise.
It's got all the bells and whistles too. Headlamps, tail lamps, reversing warning, indicators all strapped onto a comfy armchair.