Dead simple with these cars they are priced based on the condition of specific parts.

The range is going to vary massively between genuine Mint cars and 100k+ cars that have been driven in all weathers and are in your average everyday condition. The only problem is those in the trade that don't actually know too much about parts etc have issues with pricing and value everything top dollar.

Personally if i were looking for another car i'd want to be looking at enthusiasts car's in the high teens early 20's but the condition would have to match the price tag.