Fuel Economy / MPG » 7
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Fuel economy is said to be 20 mpg city and 31 mpg highway, with a combined rating of 24 mpg -- a 22 percent improvement over the outgoing RL.
this fall adds an all-wheel-drive hybrid version with 60 more horses
The Acura RLX is more powerful than the RL sedan it replaces, but it's also more fuel-efficient, Acura promises.
The EPA hasn't confirmed those estimates yet, but Acura says the 2014 RLX will earn gas-mileage ratings of 20 miles per gallon city, and 31 miles per gallon highway, for a combined rating of 24 mpg. In the class of cars we think it compares with most directly, that's a hit: nothing comes close to those ratings outside of the Lexus GS and Infiniti M hybrids, and vehicles like the turbocharged Lincoln MKS are much further off the RLX's pace. It's also a strong step forward from the old RL's numbers of 17/24 mpg, and 20 mpg combined.
Models with an all-new Sport Hybrid system will be the best-performing in the lineup, not only from a performance perspective but from a green one. They get a new triple-electric-motor hybrid system and lithium-ion battery pack, in addition to the 3.5-liter V-6, and two electric motors power the rear wheels for this latest version of Acura's SH-AWD (all-wheel drive) system. These models should boast an anticipated EPA fuel economy rating of 30 miles per gallon city and highway, as well as a 30-mpg combined figure. We'll add more information once we drive this model later this year.
The RLX has the best gas mileage in the class, hybrids excepted--and it has one of those on the way.