But, cars ending in -a sell better (scientific studies prove....). Think about all of them...
ToyotA
CorollA
SuprA
CelicA
TundrA
TacomA
HondA/AcurA
IntegrA
MazdA
MiatA
MilleniA
KiA, ImpalA, NovA
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I've said it before, I'll say it again. "Nobody does rip and snort like Ferrari"
The first two **Xs were the CRX and the NSX, which stood for Civic Racing Experiment and New Sportscar Experiment, respectively. I don't know what that makes of CR-V, MDX and SMX.
Historically RS has stood for rally sport (on Camaros).
I'd love to believe it's a Rally Sport eXperiment, but probably not.