Cadillac CT6 PHEV – 5.2 seconds
The 335-horsepower Cadillac CT6 Plug-in will deliver you to 60 mph in a mere 5.2 seconds. It boasts a top speed of 152 mph.
Mercedes-Benz S550e – 5.2 seconds
The Mercedes-Benz S550e (plug-in hybrid) ties with the Cadillac, with a 5.2-second zero-to-60-mph time. It packs 436 horsepower and tops out at 130 mph.