For most volume marques, no. There are special cases and some models like the Mustang are shockingly customizable. Even in Europa, land of the configuration checklist that's kilometers long, there are still possible configs they will not sell you.
Been meaning to reply to this for a few days, but finally getting around to it. Mustangs are actually surprisingly not customizable. When I ordered my first pony (which I ultimately ended up canceling), I wanted a few conflicting options that I couldn't get for some inexplicable reason. I wanted the gimmicky pony projector mirrors, but since those are packaged with the comfort package, you can't get them with the Recaros. You tell me how seats and side view mirrors have anything to do with each other. There were several other conflicts that I can't remember off the top of my head right now too.
Having the benefit of working for the company that actually builds the damn thing, I asked around. So far I've got 3 explanations, none of which I buy. One guy said its all about maximizing profit. The comfort package costs more than the Recaro seats so a buyer might be swayed to put out the extra penny for it to get the lights and thus earning the company more money. Really? I don't buy that a customer that wants Recaros is going to sacrifice them for some lights that shine ponies on the ground. If the company actually wanted more money, on top of bundling them in the package they should've made them available as a stand alone option. I was ready to pay them more money to get the mirrors, but NOPE, they wouldn't take my money. Ok, so one might argue that if they make it a stand alone option, people might order the option without the rest of the comfort package and thus save money overall. Fine, if you want to be greedy, make it a stand alone option ONLY for those who order conflicting options (like my Recaros). The 2nd explanation I go was that its just too much complexity for the plant to handle. Since all the parts are delivered to the line
just in time they can't have the extra combinations. Well, all the mirrors (with projectors or not) come in the same part carrier at the same time, its just a matter of the operator choosing the correct part. So that doesn't work either. The last explanation I got was that the archaic computer systems that control the plant can't handle the combinations. Without going into any detail on the system specifics, this is a garbage excuse.
I'm willing to bet theres some extra complicated marketing algorithm developed by bean counters that don't really understand what customers who buy cars like Mustangs want which causes option combos that can't be ordered together for no apparent reason.
After getting stuck in my Prelude yesterday due to the plow forcing a ton of snow under my car and preventing the wheels from touching, I'm considering selling it for something like a Jeep this summer. Snow tires are great for driving on the roads but I simply don't have the clearance i need at time. Metro Detroit sucks at plowing roads in any reasonable amount of time. Some of the on/off ramps around the area still haven't been touched by a plow. No salt has been laid either.
Do it! I beasted it to work on Monday in the XJ. All those Michigan lefts that were left completely unplowed, no problem. My apartment complex plow service completely blocking in all cars, the Jeep went right through. It was a fun commute.