Nissan's flagship sedan gets only minor changes for 2005. Maxima shares an underskin design with Nissan's Altima, which is slightly smaller and costs less. Maxima comes in sporty SE and luxury-oriented SL models. Both have a 265-hp 3.5-liter V6. Altima offers this same engine, but the Maxima's is tuned for extra horsepower. The SE comes with a 6-speed manual transmission, which Nissan says has improved shift action for '05. Optional for SE and standard for SL is a 5-speed automatic with manual shift gate. Both models include antilock 4-wheel disc brakes, head-protecting curtain side airbags, and front torso side airbags. Traction control is standard. An antiskid system is optional with automatic transmission. The SL has 17-inch wheels, the SE 18s. Both models come with Nissan's Skyview roof--fixed tinted-glass panels over the front and rear seats. A conventional power sunroof is available. Also available are navigation system; heated front seats; and an Elite Package with full-length center console, twin rear bucket seats instead of a 3-passenger bench, and power rear-window sunshade. Leather upholstery is standard for SL, optional for SE.