Ive actually tried it and it sorta makes it look like a rolls royce in a way since the grille is quite big on this thing already
if you use thinner grille bars (black instead of chrome?) and use more of them rather then having two main bars, you can keep the grille visually the same size. A lot of size is just due to proportions and perspective, so if you especially use horizontal bars the grille will appear wider rather than taller.
If there will be a wagon , than maybe a "military service van" configuration (Like the "Japan Ground Self-Defense Force Business Car No.1"(This is the title of the vehicle ,it's not mean to be one car , but a specific type of car(s) that used by bases)....which used to be Nissan Cedric (or Toyota Crown) vans back in serenity's lore era.) (Just some fun Trivia , Business Car No.2 are normal fleet car type vehicle (The models that commonly used by normal private companies to run business with.) No.3 are executive grade sedans (for high rank personal) , Patrol cars , and driver's ED cars (in short , "regular" sedans). No.4 are people carrier type.(The standard 15 seater vans)
this looks like the kind of car you'd use to fly down the expressway at 150, comfortably. keep up the good work!
quick stupid suggestion, an endurance racing version, I think it'd be pretty cool, but that's just me