Buick's minivan gets additional side airbag protection for 2006. Terraza shares its basic design with the Chevrolet Uplander, Pontiac SV6, and Saturn Relay. It's the costliest, most luxurious of the group. Terraza comes in CX and uplevel CXL models, both with seats for seven. Terraza comes with front- or all-wheel drive. The lone engine is a 201-hp V6 (196 hp with AWD) that teams with a 4-speed automatic transmission. Promised but not delivered during the model year was an optional 235-hp V6. Front-drive models have GM's Stabilitrak traction/antiskid control system. ABS and OnStar assistance are standard. Terraza has 2nd-row bucket seats that fold and remove and a 50/50 3rd-row bench that folds flat atop the cargo floor. For 2006, the available front side airbags are joined by side airbags for the 2nd-row seats. Both provide head and torso protection and are standard on CXL, optional for CX. Standard equipment includes load-leveling suspension and DVD entertainment. Other options include rear obstacle detection, navigation system, and remote engine start. Terraza's performance and accommodations mirror those of similarly equipped Uplanders.