new engine? why not just a new..or a newer car...
compare the short term benefits with long term.
sure new engine will be gud for short term, but even the new one wud be second hand right...so u dont know its faults. so in the long term it cud make life a pain..
now look at new car, short term high cost ofcourse, but it wil save u petrol, all the maintanence costs and u could have long term enjoyment.!