features such as a multifunction steering wheel, a cruise control system, aluminum-alloy wheels (which were also polished on some models), a remote vehicle starter system (for vehicles equipped with a four-speed automatic transmission only), a single-pane power moonroof, a leather-wrapped steering wheel, the OnStar in-vehicle telematics system, front side seat-mounted SRS airbags, XM satellite radio, a Bluetooth hands-free telephone system which also included OnStar, and an ABS braking system. The HHR could also be ordered with many luxury amenities (depending upon the trim level selected), such as a power-adjustable front driver's seat, a Pioneer seven-speaker premium audio system with an external amplifier and rear cargo area-mounted subwoofer, luxury leather-trimmed seating surfaces with dual heated front seats, front-mounted fog lamps, power-adjustable and heated exterior side mirrors, and a six-disc, in-dash CD/MP3 changer with USB integration. HHR Panel Van Between 2007 and 2011, Chevrolet offered a four-door panel van version of the HHR. Initially offered in LS, 1LT, and 2LT models with either a 2.2-liter or a 2.4-liter EcoTec Inline four-cylinder gasoline engine and a five-speed manual transmission, the HHR Panel Van featured a rear cargo management system in place of the standard HHR's rear split bench seat, deletion of the rear seatbelts and side SRS airbags, a plastic cargo floor in place of the standard HHR's rear carpeting, the deletion of the rear carpeted floor mats (HHR Panel Vans still included front passenger area carpeting and carpeted floor mats), and plastic panels in place of the standard HHR's rear door and quarter windows (the rear tailgate window of the standard HHR remained in place, and could still be ordered with a rear window defroster). The rear exterior door handles were removed, though the rear doors could still be opened from the interior of the vehicle. The HHR Panel Van can be distinguished from a standard HHR by a 'PANEL' emblem on the left side of the rear tailgate. For the 2009 model year, Chevrolet introduced a Panel Van version of the HHR SS Turbocharged model, which included a 2.0L EcoTec Turbocharged Inline Four-Cylinder (I4) gasoline engine and a five-speed manual transmission. This model was only offered for a single model year, having been discontinued in 2010 along with the standard HHR SS Turbocharged model. Assembly and sales The HHR was assembled in Ramos Arizpe, Mexico, and was available for sale throughout North America. The HHR was also exported to Japan by