2003 Nissan Sentra Commercial

 The Nissan Sentra is a series of automobiles manufactured by Nissan since 1982. Previously subcompact in classification, for the model year 2000 it was reclassified as a compact car. Until 2006, Sentra was a rebadged export version of the Japanese Nissan Sunny, but since the 2013 model year, Sentra is a rebadged export version of the Sylphy. The Sentra nameplate is not used in Japan.

The Sentra name was created for Nissan by Ira Bachrach of NameLab, and Bachrach describes the origin as "Nissan wanted consumers to understand that it was quite safe even though it was small. The word Sentra sounds like central as well as sentry, which evokes images of safety."

The Sentra finally crossed over into the "compact" class when the redesigned model launched in February 2000 as a 2000 model. When new, this redesign was considered a substantial upgrade, compared to the "cheap" economy car it replaced. Previously, the compact class had been occupied by the Altima, which moved to the mid-size class in 2001, and its wheelbase remained unchanged from the previous generation. While earlier Sentras were very similar to their Japan-market B-series Nissan Sunny twins, the B15 Sentra diverged greatly from the B15 Sunny (Nissan Super Sunny). Production shifted from Smyrna, Tennessee to Aguascalientes, Mexico, and the Smyrna production line was retooled to build the Nissan Xterra. 

Numerous upgrades were made over the previous generation. The new model featured a new interior with higher quality plastics and more comfortable seats. The exterior was also substantially updated and now featured body-side mouldings and clear headlights.