Totally, and I have nearly the entire line barring a couple repaints. and Like Kelpie says, this was TAKARA/HASBRO approaching those companies, not the other way around.
Imagine the main line product with properly licenced vehicles all through it, like the G1 cars were very close approximations to the real life vehicles.
A lot of the main line these days are representative of a vehicle, or type of vehicle. This is why I like the movie lines so much, actual licenced vehicles. Sadly though only from a few manufacturers.