Yes, actually it would...as MR2 is pronounced "emm are two"....unless written as M.R.2 and pronounced "midship runabout 2 seater" an "an" is used. "An" is used before all words/abbreviations/acronyms with an initial vowel
sound, such as the "e" sound in "MR2"
same reason "an" isn’t used before the word "university" or "unicycle"...because of the (you-ne-ver-city) pronunciation (y sound). you use "a"
also, i wasnt trying to "own" you....just being stupid, since i'm obviously against corolla's in this thread lol