its an ex police car done just over 180k miles(2006), bought it for £1200 and spend about a further £1000 getting alloy wheels, alternator, starter motor and done extra small things... ive fit a £200 radio as well. so roughly i've spend £2500 on this car! however, the car wont start and the mechanics said that the engine wont turn over and there is a possibility that the head gasket is blown and might of damaged the engine which then they advised me on rebuilding the engine! they mentioned that it will cost £2000 MAX. Or should i get a new engine for £700 that has 20k miles on the clock and let them put the whole engine in?