The 2021 Toyota 4Runner is available as a 4-door, 5-seat sport utility. Starting at $36,765, the 2021 Toyota 4Runner SR5 4x2 is powered by a 4.0LL , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 16-mpg in the city and 19-mpg on the highway. The top of the line 2021Toyota4RunnerTRD Pro 4x4 , priced at $ 50,745 , is powered by a 4.0LL , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 16-mpg in the city and 19-mpg on the highway.