The 2008 Lincoln Town Car is available as a 4-door, 5-seat sedan. Starting at $50,900, the 2008 Lincoln Town Car Signature L is powered by a 4.6L , 8 -cylinder engine mated to an automatic transmission that returns an EPA estimated 15-mpg in the city and 23-mpg on the highway. The top of the line 2008LincolnTown CarExecutive L (930A) , priced at $ 46,545 , is powered by a 4.6L , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated 15-mpg in the city and 23-mpg on the highway.