[RKDinOKC]

It is actually cheaper to replace that engine than buy another car.

Engines can grenade for all sorts of reasons.
Have heard of a LOT of cars that were well maintained and weren't over revved losing cams after ZDDP was removed from engine oils.
My 928GTS lost the cam and needed a valve job at 60,000 miles because of a defective part.
The engine on my 2 1/2 year old BoxterS lost crank bearings and Porsche replaced it. Being a new car it was well maintained at the dealer and Porsche checked the black box to make sure it had not been over revved or abused before they replaced it as well.

New car features are attractive though. Glad my vehicles are new enough they have crumple zone technology in case of something more serious than a fender bender.

I remember in the 70's seeing a Porsche 911 sitting at the dealership. It was only about 5 ft long. It had been rear ended at high speed and crushed against the car in front of it. Instead of crushing the passenger compartment is moved up and tilted forward so basically everything was crushed except for the passenger compartment. You could still get in and out of the car. The driver and passenger were not even scratched. Made a big impression on me though.