The 2020 Toyota Avalon is available as a 4-door, 5-seat sedan. Starting at $35,875, the 2020 Toyota Avalon XLE (A6) is powered by a 3.5LL , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 22-mpg in the city and 32-mpg on the highway. The top of the line 2020ToyotaAvalonLimited (A6) , priced at $ 42,175 , is powered by a 3.5LL , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 22-mpg in the city and 31-mpg on the highway.