Toyota unveiled the 2019 Toyota Avalon Hybrid this week at the Detroit Auto Show.

Engine options include the choice of two powertrains, a 3.5-liter gas-powered V6, and a 2.5-liter Dynamic Force four-cylinder Toyota Hybrid System II, which packs a 650-volt electric motor. Horsepower or torque figures have yet to be released.

Also not disclosed is fuel economy, but Toyota says this will be the most efficient version to date. The current Avalon Hybrid is rated 40 mpg city, 39 highway, and 40 combined. Last year the Camry Hybrid made a major jump from lower 40s to as high as 50, so don’t be surprised to see the Avalon Hybrid do something similar.

Its chassis is based on Toyota’s New Global Architecture (TNGA) with a modular platform shared by multiple models which place a premium on lighter weight components and a lower center of gravity on the performance end and cut production costs on the economic end. On the Avalon, it contributes towards longer, lower and wider stance, with more sophisticated body lines and silhouette-inducing contours than previous versions.

On the looks side, the 2019 Toyota Avalon Hybrid also features lower front and rear overhangs and a gaping Lexus-clone front grille. Its interior is capped by a floating center stack extending to a two-level dash, with an optional new Cognac color scheme, a light-brown leather intermixed with black and gray.

Other specifications for the Hybrid include a 7-inch information display panel with a digital tachometer on Hybrid models, along with a system indicator that shows the car’s regeneration status in three modes –  CHG (charge), ECO (economy), or PWR (power). Higher trims offer increased visibility with a standard 10-inch head-up display.

Look for the 2019 Toyota Avalon Hybrid to go on sale by late Spring. No word yet on pricing.