As of 2015, a 4-door 2005 Nissan Sentra is valued at approximately $2,400 in fair condition and $3,200 for a vehicle in excellent condition, according to the online edition of the Kelley Blue Book. For cars in average to good condition, the suggested price range is between $2,500 and $2,900.
The $2,400 to $3,200 price bracket applies to vehicles sold directly to a private party. Prices are lower when trading in the 2005 Nissan Sentra to a dealer, and can vary from about $1,300 to $1,800. These prices apply to a classic 4-door Nissan Sentra with a 4-cylinder, 1.8-liter engine size.