For 2007, you get an all-new Sierra pickup with a new five-year/100,000 warranty for pretty much the same price as the outgoing 2006 model. Buyers interested in a Sierra without the trimmings – including the 4.3-liter V6 engine in lieu of the V8 – pay $18,760 for a Work Truck Regular Cab, including a $900 destination charge. Work Truck Extended Cabs with the 4.8-liter V8 engine start at $23,605, moving up to $27,000 for Crew Cabs. The same vehicle in the SLE1 trim has a starting sticker of $26,565; the SLE2 trim with the 5.3-liter V8 engine begins at $28,295 and the SLT trim goes for $32,105. Denali prices start at $38,995. All prices apply to 2WD models; there’s a $3,100 premium for 4WD/AWD.