Factory Rover 3.5 V8 in the Pininfarina-influenced GT bodyshell — chrome-bumper cars lead the market.
Launched in August 1973; the Rover 3.5-litre all-alloy V8 (137 bhp per published market references) in the Pininfarina-influenced GT bodyshell only — no factory roadster. The alloy V8 weighed virtually the same as the four-cylinder B-Series, preserving the car's balance.
Four-speed manual with Laycock overdrive standard, Salisbury 3.07:1 axle, Dunlop composite alloy wheels; the concept was proven by engineer Ken Costello's private V8 conversions before BL sanctioned the factory car. Killed by the fuel crisis and dropped in 1976.
Factory V8 status and the chrome-bumper cars lead the market. A closed, small factory production run within the MGB family.
| Variant | Years | Production | Notes |
|---|---|---|---|
| MGB GT V8 — Chrome-bumper (to September 1974) | 1973–1974 | 1,839 | 1,839 chrome-bumper cars per MG Owners' Club records; the chrome-bumper cars lead the market. |
| MGB GT V8 — Rubber-bumper | 1974–1976 | 742 | 742 rubber-bumper cars per MG Owners' Club records. |
Authenticate stamped chassis and engine numbers against factory or club records. For the MGB GT V8 specifically, confirm factory-V8 identity against MGOC records — verify body number and engine identity as an original factory car, not a Costello or later private V8 conversion. Chrome-bumper cars (to September 1974) lead the market.
Confirm body originality, panel identity and restoration standard against a marque specialist.
Confirm continuous service history and any rebuild history for the engine, transmission and driveline against a marque specialist.
Restoration standard, originality of body and driveline, and any documented ownership record are the main value drivers.
| Date | Auction | Car | Mileage | Result |
|---|---|---|---|---|
| 2025-07-30 | H&H Classics Classic Motorcars | 1974 MGB GT V8 | — | £16,594 Sold |
| 2023-02-24 | Iconic Auctioneers Race Retro Classic & Competition Car Sale | 1974 MGB GT V8 | — | £27,000 Sold |
| 2023-02-24 | Iconic Auctioneers Race Retro Classic & Competition Car Sale | 1975 MGB GT V8 | — | £22,500 Sold |
Factory V8 status and the chrome-bumper cars lead the market. Factory-V8 identity against MGOC records is the defining check.
Our view, not advice. This section is Car Collector International's editorial judgement on where this model sits in the collector market, based on the production, specification and market data set out in this guide. It is not a recommendation to buy or sell and it is not investment advice. Values can fall as well as rise.
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The valuation figures in this guide are for research purposes only and do not constitute financial or investment advice. See our full disclaimer.
