Base GS 300 models are powered by a turbocharged 2.0-liter four-cylinder engine with 241 horsepower and 258 pound-feet of torque paired with an eight-speed automatic transmission. As equipped, the GS 300 makes an EPA-estimated 22 miles per gallon city, 32 mpg highway, and 26 combined. The Lexus GS 350 comes with a 3.5-liter V6 engine making 311 hp and 280 lb-ft of torque. Rear-wheel-drive models have an eight-speed automatic transmission, while all-wheel-drive versions come with a six-speed automatic transmission. This model makes 20/28/23 mpg (city/highway/combined). Finally, Lexus equips the GS F, an all-wheel-drive model, with a 5.0-liter V8 engine. This one makes 467 hp and 389 lb-ft of torque. The EPA rates this model at 16/24/19 mpg.
While the base engine delivers adequate power under normal conditions and the V8 has copious amounts of power at its disposal, we think the middle V6 engine is just right for most shoppers. For this reason, the GS 350 is our pick. We can dream about the GS F, but its price tag adds more than $30,000 to this sedan.
Buyers should take note that the RWD GS 350 works with an eight-speed automatic transmission, while the AWD version works with a six-speed automatic. Both transmissions work beautifully with the V6 engine, switching between cogs almost unnoticeably. We especially like the GS’ connected steering and spot-on handling. Combine these with a very comfortable ride and the GS is a formidable entrant in a segment that includes the BMW 5-Series and Mercedes-Benz E-Class.