It is indeed powered by a 286bhp BMW 8 cyl, though its rumoured it that Morgan have tuned it and itactually develops a lot more than 286bhp. I wouldnt doubt that at all, as it reaches 60 in under 5. It's a great handling car, superb on twisting roads as well as the superb power to weight ratio of 291bhp/ton. thats just the official quote, but if the engine does indeed develop more than 286bhp, im sure the figure is well above 300bhp/ton.. It was put up against a Boxster S and came out on top, not bad.
heres another pic
cheers
jay