Differential Disconnect system after the 2000 model year. Variants At its introduction as a model year 1995, Tacoma 4WD and 2WD models could be distinguished externally by the front grilles. The 4WD model had two heavy chrome bars flanking a trapezoidal opening, tapering toward the top, while the 2WD model had thinner bars (optionally chrome) with a trapezoidal shape tapering toward the bottom. Both the regular cab and extended Xtracab share the same bed, which has an interior length of ; the wheelbase and overall length of the Xtracab is extended by approximately compared to the regular cab. The PreRunner model was introduced for the 1998 model year. The PreRunner is a 2WD that shares the same taller suspension, six-lug wheel bolt pattern, and 2.7 L base engine as the four-wheel drive. Along with the four-wheel drive model, it was also available with the TRD Off-Road Package that included a locking rear differential, also introduced in 1998. A Regular Cab PreRunner was introduced in 1999. Designed through 1998 (by Yusuke Fukushima) as part of the MY2001 facelift (patented on September 22, 1998, at Japan Patent Office under #0890798) was a new crew cab (four-door) model added to the lineup in October 2000. The crew cab, officially dubbed as the Double Cab model, featured four doors and Tokico gas shocks, while the extended cabs still opened with two doors and used Bilstein shocks. The extended cab featured a bed, while the crew cab featured a bed. Many customers were upset with small crew cab beds, but most competitors shared this shortcoming. In October 2000, along with the front facelift, Toyota also unveiled the S-Runner trim package for the 2WD Xtracab that was available exclusively with the 3.4-liter V6 engine coupled to a five-speed manual transmission. The final drive ratio is 3.15:1. Visually, the S-Runner carried a monochrome finish, with a grille and other trim pieces colored to match the exterior in either Black Sand Pearl or Radiant Red. The overall height is reduced by approximately through the use of low-profile P235/55R16 tires on alloy wheels; additional suspension tuning features include Tokico gas shocks and front and rear anti-sway bars. Only 800 were produced each month from September 2000 to August 2004. Sales and recalls In its first few years of production, the Tacoma sold very well, attracting many young buyers. By 2003, the Tacoma had gained 16.5% sales from its previous