Deadly, that looks like an RA version. It has lightweight doors, engine, pedals, seats, lightweight interior, wheels etc..... some baby to go, nice find and good luck with her and watch out for lift off oversteer.
Good spot Andy. I'd say its max speed for each gear as it doesn't have a rev counter. She'll probably go as hard in 4th, 5th probably only there to lower the revs when doing motorway speeds but no extra pace in it?