Why don't automakers put body kits on the sport variations of their cars?

The "sport" variety always just likes like the basic trim except with blacked/smoked out wheels and maybe a different engine. Otherwise nothing is really different, nothing makes it stand out and thus there's no incentive to buy it. What happened to cars like the 2000 Tahoe Limited, Ford Ranger Thunderbolt, or even the Ford Fusion Sport (2012)?

These cars had body kits and looked good. I understand they can be gaudy sometimes, but when done right, they're a nice, inexpensive touch.

I'm sick of answering questions just to ask them

  • Why don't car companies remake some of their classic car models if people like them so much? Of course safety is in mind because everyone would freak out if they didn't have a seat belt and air bags in every inch of the car, but why can't some of the companies just remake their best selling car models? Dodge could remake their 1948 Sedan and Ford could remake their 1949 Custom. I could list more but I can't think of any more classics.
  • Why don't automakers commonly make 3 or 5 cylinders? Most reliable cars like toyota or honda are only come with 4 and 6 cylinder are available and what do you think of those engines? There's still exist, like discontinued inline 5 of vw, few inline 3 on ford and mitsubishi but 3 are unreliable.
  • Why don't American cars last as long as Japanese cars? My family has owned a Ford Taurus and a Nissan Altima of similar model years. Both cars are still running, but the Taurus has very low mileage (it's a 1999 with only 85,000 miles) and the interior is in horrible condition and the plastics Ford put in have been known for breaking. None of this has happened with the Altima, even though it has more miles. Why?
  • I need to put a different engine in my 1982 Ford Ranger Lariat and I don't know what to put in it? It's the biggest engine you could get at the time in those trucks, so it is a v8, I just don't know the exact size. Since the engine is pretty much dead that's in it I was wondering if almost any v8 could go in it's place or if it has any specific engine that has to go it in. Also any good suggestion for a good engine would be great.