Searching for a sporty and luxurious sedan but at a price lesser than BMW 4 Series Gran Coupe or an Audi A5 Sportback? If yes, consider the 2018 Buick Regal-Sportback which will surely impress you with its long list of premium features. Cargo capacity available now is much more than what was available before. One element that plays its part in comfort is the tire, and the 2018 Buick Regal-Sportback tires on a new vehicle are likely to be either Continental ProContact TX or Goodyear Assurance FuelMax. The vehicle comes with two engine options, a 2.0-liter, inline-4 turbo that develops 250 hp of power and a 3.6-liter V6 with 310 hp of power. Despite the powerful engines, fuel economy is impressive. You can expect 22 miles per gallon in the city and 32 miles per gallon on the highway.