Is lexus rated high?

The GS 450h weighs 4134 lb (1875 kg), but the combined hybrid powertrain produces 339 hp (253 kW), allowing the GS to accelerate to 60 mph (97 km/h) in 5.2 seconds , compared to the GS 430's 5.7 seconds . EPA-rated highway fuel economy is 28 mpg (8.4 l/100 km), while the city fuel economy is rated at 25 mpg, which is slightly unusual for hybrid vehicles of this type (as they normally have higher city fuel economy ratings).