MazdaFan

Three MAZDASPEED Concepts to Debut at Tokyo Auto Salon These are Mazdaspeed models, not the parts and accessories. So like the Mazdaspeed 3 and 6 now (with 2.3-liter DISI turbocharged DOHC inline-4 versus inline-4's and V6 in the regular models), these should be next-gen with different powertrains. BTW, Ward's 2008 10 Best Engines: Mazda 2.3-liter DISI turbocharged DOHC inline-4 in the Mazdaspeed3. I wouldn't say there are hardly no engine improvements!