1984 Buick Grand National, Single Family Ownership, original paint, WE2 Code, T Type Regal, 3.8 SFI Turbo, Automatic Transmission, A/C, power Windows, Power Seat, Partial Leather Seats (one year only), New Tires, New Shocks, New Exhaust, Tune Up(wires, plugs, PCV, hoses, filters), New Engine Gaskets, New Belts, Coolant Flush, Trans Gasket/Filter Change, Odometer 64,401.

For 1984, the Grand National returned, now in all black paint. The turbocharged 3,791 cc (3.8 L; 231.3 cu in) became standard and was refined with sequential fuel injection, distributor-less computer controlled ignition, and boasted 200 hp (203 PS; 149 kW) at 4400 rpm and 300 lb⋅ft (407 N⋅m) of torque at 2400 rpm. Only 5,204 turbo Regals were produced that year, only 2,000 of which were Grand Nationals. Because this was the first year production of the computer controlled sequential fuel injection and distributor-less ignition, this is often considered the year and model that started the development of the legendary intercooled Grand Nationals. The performance of this package was well ahead of its time and the "little V6" easily kept up with the bigger V8s. 1⁄4 mile (402 m) performance was listed at 15.9 seconds at stock boost levels of 10 psi (0.69 bar), while for the same year, the Chevrolet Camaro V6 was listed at 17.0 and the Chevrolet Corvette at 15.2 seconds. Soon, performance enthusiasts determined the modifications that worked and the Grand Nationals easily broke into the 13-second territory. All Grand Nationals had the Lear Siegler-made cloth/leather interior which was only available for this year.