I watched a business proposal that was pitched to VW {I believe they are the largest manufacturer in the world}, it showed a program {essentially a recipe} for the "forever" car, a vehicle that would last 50 years and 750K miles with under $225 per year of "upkeep", there was some cool stuff in there, a lot of exotic plastics, a sleeved low compression 5 cylinder engine with 2 oval valves per cylinder, an engineered frame that had fuel, brake, exhaust all integrated into it, the braking system was really interesting one rear caliper type device with 2 in the front that can on the axles away from the wheel but in direct air flow, power steering that was powered by a direct drive system {worked when you were moving but had a small reserve can for when you were not moving enough to turn the wheel back and forth a few times}, most of the stuff was direct drive altenator, brakes, steering, a/c compressor all driven by a road drive that spun when the car was moving with an electrical back and pressure reserves for when not in motion.... The moving parts were cut in half, the engine was designed with oversized bearings, and made to be in chassis rebuildable... It was very interesting but car companies will never go for it because they would lose a ton of money with a car that lasts 50 years....
They have integrated some ideas, like the plastic body, but the body on this vehicle was replaceable wiith no body work, no epoxies {like saturn} ect, just unbolt it and bolt the new part back on... I will say the car was ugly, I looked on the internet a few years back to find info on it, but found nothing, it was a swedish company, never heard of it again, I watched the video at a business seminar years ago...