Nissan's flagship sedan got only minor changes for 2005. Maxima shared an underskin design with Nissan's Altima, which was slightly smaller and cost less. Maxima came in sporty SE and luxury-oriented SL models. Both had a 265-hp 3.5-liter V6. Altima offered this same engine, but the Maxima's was tuned for extra horsepower. The SE came with a 6-speed manual transmission, which Nissan says had improved shift action for '05. Optional for SE and standard for SL was a 5-speed automatic with manual shift gate. Both models included antilock 4-wheel disc brakes, curtain side airbags, and front torso side airbags. Traction control was standard. An antiskid system was optional with the automatic transmission. The SL had 17-inch wheels, the SE 18s. Both models came with Nissan's Skyview roof--fixed tinted-glass panels over the front and rear seats. A conventional power sunroof was available. Also available were a 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 was standard for SL, optional for SE.