The 2010 Honda Insight is available as a 4-door, 5-seat hatchback. Starting at $21,300, the 2010 Honda Insight EX is powered by a 1.3L , 4 -cylinder engine mated to an automatic transmission that returns an EPA estimated 40-mpg in the city and 43-mpg on the highway. The top of the line 2010HondaInsightLX , priced at $ 19,800 , is powered by a 1.3L , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 40-mpg in the city and 43-mpg on the highway.