I can definitely attest that the Land Rover (in its original, go anywhere, form) was the opposite of luxury.
I thought that the "sport of Kings" was horse racing, but I guess that any ludicrously expensive sport can be considered luxurious in monetary terms.
LM, defamation and computer crimes laws are constantly abused in order to stifle any meaningful change. I do not expect any significant change during my lifetime (maybe 30 years, max).
That would work "hopefully" - except that the driver will often pay an on-the-spot "fine" of 200/400 baht and go on his way. TiT, and I don't think it will change any time soon (unfortunately).