Originally Posted by codprawn
Very true but you know this before you buy one - they have never managed to cure the fuel consumption or oil usage problems but other than that they are great.
Actually after time the oil use does settle down - to about 0.5l per 1000 miles so not too bad.
Having owned a Mazda RX-7, I can say that the oil thing was a first generation problem. Mazda solved it by using a nitride coating on the comb chamber walls, and going to harder seals on the rotor corners. Mine burned little enough that checking it between oil changes was pretty much unnecessary.
Fuel economy does suffer with a rotary, though.
Smooth power, though, and no redline worries.
I think that, for a given output, the rotary engines are smaller and lighter than a piston engine of equal power, which would be a decent offset to the economy.