Original sentence: It is generally assumed that the reason the trucks sold so poorly was low consumer demand for vehicles with poor gas mileage in an environment of rising gas prices:  According to the window sticker, the mpg on the Ram SRT-10 is 9 city and 12 highway
Edited sentence: It is generally assumed that the reason the trucks sold so poorly was low consumer demand for vehicles with poor gas mileage in an environment of rising gas prices: Even 500ci Cadillacs of the 1970s delivered more than 7.5mpg city from independant testing ()