The Honda Accord was completely redesigned for the 2008 model year, featuring stronger and more efficient 4- and 6-cylinder engines, a larger interior, and better handling than pre-2008 models.

For 2009, the Honda Accord does not receive any changes.

Testing of production engines for horsepower and torque output has revealed that the average horsepower and torque produced by Honda's V6 engines used on the Accord is higher than originally estimated prior to the start of mass production. Though there have been no design changes to the engines to create more power, the horsepower and torque ratings for the 2009 models have been increased to reflect the actual output of the engines. For 2009, 271 hp replaces 268 hp on all V-6 models, 254 lb-ft. replaces 248 lb-ft. on automatic transmission models and 251 lb-ft. replaces 248 lb-ft. on manual transmission models.