MX is 1.5 FF , MR is 1.6 FF .........very big difference , should be easy to ID it , but I heard some shop use the 1.8GSR AWD to cheat the customer , coz this one is Turbo and 4WD too ~ or you can ask someone know much abt Evo. go together . ** if the shop/owner really wanna cheat you , they can do many different ways ......... Good luck !