with larger opening quarter panel windows and a slightly notched roofline. The 2+2 looked largely identical inside (aside from the rear seat and its associated seat belt reels), but did receive a carpeted transmission tunnel rather than the quilted vinyl material used on the two-seater. The rear side windows on the 2+2 were push-out units, to add ventilation for rear seat occupants. The 260Z claimed a few updates and improvements over the 240Z. The climate controls were more sensibly laid out and easier to work, and those cars with air conditioning now had the A/C system integrated into the main climate control panel. There was also additional stiffness in the chassis due to a redesign of the chassis rails which were larger and extended further back than previous models. A rear sway bar was added as well. The 260Z debuted a redesigned dashboard and console, as well as new seat trim, and door panels for the interior. The tail lights were updated, moving the back up lights from the main tail light housing to the back panel. Early 1974 US 260Z models had bumpers that resembled those of the earlier 240Z, though increased slightly in size, pushed away from the body somewhat, and wearing black rubber bumper guards rather that the previous chrome bumper guards with rubber strips. These early cars still had the front turn signals located below the bumpers. Late 1974 U.S. 260Z models (often referred to as 1974.5 models) carried the heavier bumpers that would remain on the 1975-76 model years of the 280Z so as to be in compliance with United States bumper legislation in 1973. These late cars had the front turn signals relocated to the outer edges of the front grill, above the bumper. Specifications Engine: L26 I6, cast-iron block, alloy head, two valve per cylinder, seven-bearing crankshaft, single overhead camshaft Displacement: Bore: Stroke: Compression ratio: 8.8:1 Fuel system: Mechanical fuel pump, twin Hitachi HMB 46W SU-type carburetors Power: at 5,600 rpm (SAE gross); at 5,200 rpm (SAE net) Torque: at 4,400 rpm (SAE gross); at 4,400 rpm (SAE net) Transmission: five-speed or four-speed manual or three-speed automatic Brakes: Front: discs front Rear: X drums rear, servo assisted Total swept area: Suspension: Front: Independent with MacPherson struts, lower wishbones, coil springs, telescopic dampers, anti-roll bar Rear: Independent with Chapman struts, lower wishbones, coil springs, telescopic dampers Steering: rack and pinion, 2.8 turns lock to