The TVR 350i is a sports car built by British company TVR from 1983 until 1989. In 1982 TVR's then new owner Peter Wheeler found himself wanting more power than the Cologne V6-equipped Tasmin 280i could offer. Thus, based on the existing car the TVR Tasmin 350i appeared in August 1983.^[1] Using the same chassis and body (with some minor changes), a 3.5-litre Rover V8 was installed. After a year, the "Tasmin" part of the name was dropped and the car became just TVR 350i.^[2]

The 3.5 L V8 produced 197 hp (147 kW) at 5280 rpm and 220 lb⋅ft (298 N⋅m) of torque at 4000 rpm,^[3][4] propelling the 350i to a top speed of between 130–135 mph (209–217 km/h), while 0-60 mph (97 km/h) took between 6.3 and 6.5 seconds. The Rover-engined 350i provided the added benefit of being marketable in Arab countries, where there was a certain political resistance to buying Ford products because of Ford's close dealings with Israel.^[2] The 350i also provided the basis for the 390SE first seen at the Birmingham Motor Show in October 1984,^[1] as well as the extreme 420/450 SEAC and other future developments.

A modified form of the 350i's chassis, itself a stretched version of the chassis used for the old M-series, also underpinned the S-series as well as the later Griffith. There was a short run of non-factory Sprintex supercharged 350SX (and the bigger hearted 400SX) made by the Northern TVR Centre in the mid-1980s. Nine and two of the respective versions are thought to have been built. Power is not certain, but 260 bhp (194 kW) for the 350SX is commonly cited.^[5]

By 1989, after the introduction of the 400/450SE and 420/450 SEAC, the lineup was rationalized and the by now least powerful 350i was dropped.^[2] Over 1,000 350i's were built. The end of the run was marked by the limited edition (25 examples only) 3.9-litre TVR 350SE of 1990-91.