An older friend needed a newer vehicle. While having some tires fixed on my Durango R/T I saw an '06 Commander for sale at a reasonable price Milage was 137K, so less than 10K a year. I told him to take a look at it and he just went down and outright bought it. It needed some electrical work that the seller fixed. My concern now is the 4.7 engine. As I remember,they gave quite a bit of problems when they first came out. This one runs as smooth as a Swiss Watch. My question is how does a 4.7 compare in reliability to earlier Mopar engines such 318 or 360? He does take good care of a vehicle but if something happens to the engine I really don't want to hear about it Thanks.