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Not to be outdone by its gasoline siblings, the ES 300h is capable of delivering exceptional fuel efficiency, responsive performance and minimal emissions for an entry-level executive sedan. A new, fourth-generation Hybrid Drive System couples an ultra-efficient, Atkinson cycle 2.5-liter, four-cylinder gas engine with a lighter, more compact, more power dense electric motor and self-charging hybrid system. Together they deliver a combined 215 total system horsepower and class-leading EPA mileage numbers of 43 mpg city, 45 mpg highway and 44 mpg combined. Those numbers make the ES 300h the most fuel-efficient luxury vehicle without a plug.

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The RC 300h is powered by a self-charging full hybrid system that gives the vehicle the capability of running emissions-free on its electric power alone.

The powertrain combines a petrol engine and compact but powerful electric motor. These automatically work together or individually to provide optimum performance according to road conditions and the driver’s preference. Lexus Hybrids recharge as you drive, so they are always ready to go. Furthermore, up to 53.8%2of city driving time can be accomplished in zero emissions EV mode. The system is also characterised by quick and linear acceleration, high fuel efficiency, exceptionally low emissions and a luxuriously smooth ride.

The engine featured in the RC’s Lexus Hybrid Drive is a 2,494 cc Atkinson cycle, direct injection, four-cylinder unit that delivers a maximum output of 181 DIN hp/133 kW at 6,000 rpm and peak torque of 221 Nm between 4,200 and 4,800 rpm. The electric motor has an output of 143 DIN hp/105 kW. The combined system power is 223 DIN hp/164 kW.

The rear-wheel drive RC 300h accelerates from 0-100 km/h in 8.6 seconds and has a maximum speed of 190 km/h, yet returns average fuel consumption figures from as low as 5.9 l/100 km (WLTP¹) and CO2emissions from just 131.7 g/km (WLTP¹).

The engine’s Atkinson cycle timing features an expansion stroke that is longer than the compression stroke, resulting in a more efficient conversion of combustion energy. This, together with a higher compression ratio and the introduction of additional advanced engine technologies, improves the engine’s thermal efficiency to 38.5%.

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