The 2004 Volvo C70 is available as a 2-door, 4-seat convertible. Starting at $41,880, the 2004 Volvo C70 HT M is powered by a 2.3L , 5 -cylinder engine mated to a manual transmission that returns an EPA estimated 20-mpg in the city and 26-mpg on the highway. The top of the line 2004VolvoC70HT A , priced at $ 42,880 , is powered by a 2.3L , 5 - cylinder engine mated to an automatic transmission that returns an EPA estimated 18-mpg in the city and 25-mpg on the highway.