Cadillac announced details of a new Twin-Turbo V-6 engine
and eight-speed transmission—firsts for the brand and signature features of the
all-new 2014 Cadillac CTS midsize luxury sedan debuting next week at the New
York Auto Show.
Rated at an SAE-certified 420 horsepower (313 kW) and 430 lb-ft
of torque (583 N·m ), it is the most powerful V-6 ever from General Motors. It
is also the most power-dense six-cylinder engine in the midsize luxury segment,
with 118 hp/liter (88 kW/liter). GM estimated fuel economy for the CTS with
Twin-Turbo is 17 mpg city (13.8 l/100 km) and 25 mpg highway (9.4 l/100 km).