Cadillac CT6

The days appear to be numbered for Cadillac's flagship sedan, as the Detroit-Hamtramck plant that builds it is scheduled to close in January 2020. Until then, the CT6 carries on with four trims that are offered with either a 3.6L V6 or a 3.0L twin-turbo V6, depending on model. A 10-speed automatic drives either the rear wheels or all four depending on trim. Of note, the CT6-V, powered by a 4.2-litre twin-turbocharged V8 (550 hp / 627 lb-ft. est.) will join the lineup for 2020.