In its LF-NX Turbo concept to be shown at the 2013 Tokyo Motor Show, Lexus hints at a new 2.0 liter powertrain for future models.

More compact than the RX luxury utility vehicle (LUV) at 182.7 inches long with a 106.3 inch wheelbase, the LF-NX Turbo concept focuses, per Lexus, on the growing segment of smaller, more urban-centric compact premium crossovers.

As Lexus stated it, combining spirited performance with optimum fuel efficiency, the new LF-NX Turbo’s 2.0-liter engine paves the way for the introduction of turbocharged powerplants in future Lexus models.

The LF-NX Turbo concept is equipped with Lexus’ first turbocharged gas engine. The 2.0-liter, four-cylinder unit combines Lexus’ advanced high tumble port, fan spray fuel injection, D-4S and VVT-iw combustion technologies with a cylinder head-integrated exhaust manifold and a twin scroll turbocharger with an active wastegate valve.

Lexus explained through optimization of the exhaust gas temperature, the cylinder head-integrated exhaust manifold combines a high level of performance with fuel efficiency, and clean exhaust emission reliability, while the twin scroll turbocharger operates effectively across the widest possible rev range.

The LF-NX Turbo’s new powerplant targets a fast throttle response and exhilarating performance while demonstrating outstanding fuel efficiency, said the company.

Inside, the driver-focused cockpit introduces the new Remote Touch Interface (RTI) with touch tracer display and touch pad control, set to appear in production Lexus models, including the new RC coupe.

Lexus did not precise which models will receive the new turbocharged powerplant, nor fuel consumption comparison with existing engines.