Cadillac's sharp-suited 2015 Escalade has now been on sale for a few months, with styling and interior that have taken great leaps forward over the previous model, and a single 420-horsepower, 6.2-liter V-8 gasoline engine.

That could be about to change, according to David Schiavone, the model line's brand manager. Speaking to Automotive News (subscription required), Schiavone says the brand is considering two new powerplants—a twin-turbocharged gasoline V-6, and a turbocharged diesel V-6 engine. Neither would replace the existing V-8, instead serving as other options for customers seeking different performance characteristics or improved economy. The new engines would also make the Escalade an easier sell in countries where gas prices are higher and emission laws stricter.

The sporty V-6 model could be granted the 'Vsport' tag, denoting it from the other models. The new engines would also further distance the Escalade from its closest competitor, the Lincoln Navigator—the Ford brand's luxury SUV drops its 5.4-liter V-8 for the 2015 model year, offering only a twin-turbo 3.5-liter V-6 to customers.

Those wishing for even better performance from their Escalade could do worse than to send their money Hennessey's way—the renowned tuner unveiled a 557-horsepower version of the luxury SUV back in April. For just under $16,000, on top of the base Escalade's $73k price tag, the supercharger conversion also liberates 542 lb-ft of torque.

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