Consumer Reports is part of Ralph Nader's Consumer Union, an extremely left-wing operation. It is inconceivable that a $89k car with a top range of just 200 miles gets their top rating without a bias.
Consumers Union was founded in 1936, when Ralph Nader was not yet two years old. Ralph Nader was on the board for a while but resigned in 1975 because it focused on product testing rather than advocacy.