A twin-turbo V8 engine for the Cadillac CT6

Since its launch in 2015, the Cadillac CT6 has only been offered with four- and six-cylinder engines. Now, though, the range is gaining an all-new V8 – a move that should appeal to the brand’s traditional customer base.

Displacing 4.2 litres (255 cubic inches), the aluminium unit incorporates a ‘hot V’ layout which places a pair of low-inertia twin-scroll turbochargers in between the two cylinder banks. Cadillac says that this arrangement minimises turbo lag while benefiting packaging.

Cadillac CT6 V-Sport (2019) Front Side

Two versions are planned. In standard guise, estimated output is 500 bhp (373 kW / 507 PS) with 750 Nm (553 lb/ft) of peak torque. For the high-performance V-Sport variant those figures increase to 550 bhp (410 kW / 557 PS) and 850 Nm (627 lb/ft) respectively.

Both options will be combined with a Hydra-Matic 10L90 ten-speed automatic transmission and all-wheel drive.

To help efficiency, the CT6 V8 features Active Fuel Management (to deactivate four of the cylinders under light throttle loads), a stop-start system and direct injection. However, the key miles per gallon stats have yet to be disclosed, so their effects remain unknown.

Cadillac CT6 V-Sport (2019) InteriorCadillac CT6 V-Sport (2019) Rear Side

Related posts:
2016 Cadillac CT6 PHEV confirmed
2016 Cadillac CT6 first view

Images © General Motors.

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