Mercedes-Benz E-Class engine choices shall be shaken up in model year 2015. Associate editor Scott Evans is driving the updated 2014 Mercedes-Benz E-Class lineup and got a glimpse into the E-Class’ likely future powertrain plans that may likely upset fans of larger displacement but please those that favor forced induction.

As we’ve mentioned before, a brand new E400 biturbo model is predicted to reach inside the U.S. by fall next year (model year 2015), powered by a twin-turbo 3.0-liter V-6. The engine will produce just below 330 hp and about 350 lb-ft of torque, and may be available in rear- and all-wheel-drive. The E400 shall be priced above the E350, which continues on with the naturally aspirated 302-hp 3.5-liter V-6 with 273 lb-ft. In sedan form, there’s no 2015 E550, though, with its turbo 4.7-liter V-8 rated at 402 hp and 443 lb-ft of torque.

Powertrain plans for the E-Class coupe and cabriolet are less clear, but we ponder whether the V-8 will stick around for both-doors, considering they never received an AMG model. Speaking of which, the only real strategy to get a V-8-powered E-Class sedan (and wagon) would be the E63 AMG, which have been updated with a brand new all-wheel-drive system and a tweaked 5.5-liter V-8 that produces 550 hp and 531 lb-ft. a brand new E63 S-Model will churn out 577 hp and 590 lb-ft. And as previously reported, the E350 Bluetec diesel will soon get replaced by a brand new E250 Bluetec, which gets a 2.1-liter four-cylinder turbodiesel rated at 190 hp and 369 lb-ft. For now, the E400 hybrid carries over.

The change isn’t entirely surprising, especially whilst you examine other luxury brands which are also continuing their march toward small displacement engines. Jaguar is a primary example. Just over a year ago, the XF sedan was only available with a V-8. Now, the 2013 XF lineup incorporates a 2.0-liter turbocharged four-cylinder (240 hp and 251 lb-ft) and a supercharged 3.0-liter V-6 rated at 340 hp and 332 lb-ft.