Most European and Japanese luxury competitors to the Hyundai Genesis have over the past several years moved to offer either downsized engines, hybrid or diesel models—or at the least, other technologies like engine stop/start that bring incremental gains. In the 2016 Hyundai Genesis, you won't find any of these; and while it arguably helps keep the sticker price low, Hyundai's unadventurous approach here is going to turn off some shoppers who prioritize having a model that especially fuel-efficient and 'green.'
The 2016 Genesis 3.8 models return 18 mpg city, 29 mpg highway with rear-wheel drive, or 16 mpg city, 25 mpg highway with all-wheel drive. Bigger-engined, V-8 models stand at 15 mpg city, 23 mpg highway.
In an early drive on mostly wide-open expressways and rural two-lane highways, we saw an average of about 25 mpg with a rear-wheel-drive V-6 model and nearly 23 mpg with a V-8. Modern engine technology includes variable valve timing and direct injection, which together with the eight-speed automatic's wide span of ratios helps deliver these engines' higher output without putting a larger dent in real-world returns.
The V-6 runs on regular-grade gas, while premium is recommended for the V-8.