Mazda discontinued the oilthirsty, twinrotary RX8 in 2011 (boo!) but the spirit will live on in the Mazda RX9 (applause). This attractive, almost Jaguarlike concept, set to become a production car in 2013, packs a 300bhp twinturbo, erm, diesel. Not quite as highrevving as its predecessor, then, but its still going to be rapid and a hell of a lot more ecofriendly than its predecessor.