I don’t think there’s a vehicle on the market that doesn’t have a usable lifespan far beyond 10 Years anymore.
I do not agree completely here. Why? The biggest boost for the automotive industry was car leasing. Instead of selling a new car to my father every 10 to 12 years owners change it every 3 years, 5 at the latest. SAP for example owns 29,000 business vehicles alone. Take Sixt, Hertz, Avis, you name it and all the other companies with all their fleets where the exchange is even faster. Car companies do not make money with the car itself anymore (ok, it seems Ineos is different here if I look at all these price tags) but with the loans of their house bank and leasing fees and services around the car.
Therefore cars must be shiny and working for what...5 years? After that it disappears somewhere in the used car market somewhere in the world. Who cares as long as a new car can leave the factory for it?
Next thing is, owning a new car for too long get's too expensive. I remember me as a small boy and my father lying under his beloved Opel, repairing this and that for small money keeping it alive.
That is not possible more today. A modern headlight module is between 3,500 and 6,000 Euros as a spare. If there is a scratch and you fail the inspection that is more money than the car is worth....and why? Because there are one or two new generations of your modell already on the market.
You have to go to the workshop, read errors and then, if a complete module.is identified....change it. That costs money, every time. Already with the A-Class you had to pull the engine out to change the starter. Batteries are behind carpets glued to the floor plate. With modern Ford engines you have to pull the injectors just to change the valve cover seal. Removing power from a car can be a desaster, so always remember to bridge it if you're a DIY.
Finding the source of the problem alone is a nightmare. Add hybrid cars to that equation.
There is a reason why companies like Kia are so successful, they cover your complete ownership, no costs, 7 years maximum...but then...better get rid of it and get a new one.
Despite the technology for the body may have increased, engine technology has decreased. Mainly due to environmental protection.
We had steel liners, some Millimeter thick, in the past, runs even when damaged, easy to repair. Today you have coatings mycrometer thin. You have to find someone first who has the equipment to repair that. Pistons nod and these coatings can not withstand this or some sand in the cylinder as long as a steel liner can.
Oil must have such a low viscosity that the engine faces as less resistance as possible, but keeping the oil pressure up becomes difficult, so that piston cooling is switched of at idle. The IG engines do that but ECU controlled with a variable oil pump, maybe that is better. Airgap isolated exhaust manifolds tend to rust what kills your turbo. EGR cloggs the input manifold and as the engine should not weight anything more and more, even vital parts, are made from plastic which can't withstand the temperature ups and downs as metall can.
My Land Rover Series 2a is now 53 years and one month old, we never get back such cars.
AWo