Early models were internally designated Z16A and incorporated full-time four-wheel drive, four-wheel steering, active aerodynamics with automatically adjusting front and rear spoilers, sport/tour exhaust modes and electronically controlled suspension (ECS). The GTO, 3000GT and Stealth featured pop-up headlights and articulated blister caps on the hood to accommodate the ECS controllers at the top of the strut turrets. The Dodge Stealth featured a signature cross-hair front bumper fascia and crescent-shaped rear spoiler — and did not include active aerodynamics. In 1993 the engine went to a 4 bolt main and a forged crankshaft, some of the early models in 1993 still received the cast crank present in the first years. In the U.S., both the 1991 to 1993 Dodge Stealth R/T Turbo and Mitsubishi 3000GT VR-4 received the transversely mounted 24V V6 paired with a long ratio 5-speed manual. The base model Stealth was the only model to feature crank windows, without the sunroof it weighted at 3075 pounds or 1395kg. All the other models received electronic windows (automatic on the driver side). Automatic climate control was standard on all turbo models. The Stealth turbo weights 3800 pounds compared to the 3814 pounds of the VR-4. The non turbo 3000gt (with sunroof) weights 3373 pounds and 3200 without the sunroof. Electronically adjustable leather seats were standard on all US VR-4 while the GTO in japan were offered with slightly lighter cloth seats.