The fixed-head coupé and 2+2 GT derivatives of the AC Ace — the Bristol-engined Aceca leads the market.
The Aceca (1954–1963) is the fixed-head coupé derivative of the AC Ace, sharing the Ace's tubular chassis with heavier-gauge main rails, an extra crossmember and rubber differential mountings; the body uses wood-framed doors and tailgate rather than the Ace's tube construction.
Three engine options were offered: the Aceca with the 1,991 cc AC SOHC inline-six (85–105 bhp across production); the Aceca-Bristol with Bristol's 1,971 cc inline-six based on the pre-war BMW M328 (105 bhp B-type or 125 bhp D-type); and the Aceca 2.6, with the 2.6-litre Ford Zephyr Ruddspeed unit from 1961. Total production was 328: 151 AC-engined, 169 Aceca-Bristol and 8 Ford 2.6. The Aceca-Bristol outsold the AC-engined car and added approximately $1,000 to the $5,400 US base price. Front disc brakes were standardised from 1957; overdrive was available from 1956.
The Greyhound (1959–1963) is the 2+2 grand touring derivative, announced at the October 1959 Motor Show on a lengthened 100-inch wheelbase (versus the Aceca's 90-inch). Two-door four-seat aluminium body; same engine options — AC 2.0L (75 hp), Bristol 2.0L (125 hp) and 2.2L (105 hp), Ford 2.6L (170 hp); the majority were Bristol-engined. 83 were built. All variants were capable of exceeding 100 mph.
The Bristol-engined Aceca leads the market; the Greyhound commands a rarity premium within a thin market.
| Variant | Years | Production | Notes |
|---|---|---|---|
| Aceca (AC engine) | 1954–1961 | 151 | 1,991 cc AC SOHC I6, 85–105 bhp; 4-speed manual; 962 kg. |
| Aceca-Bristol | 1956–1963 | 169 | Bristol 1,971 cc I6 (BMW M328-derived), 105 bhp (B-type) or 125 bhp (D-type); 4-speed manual. Most desirable variant. |
| Aceca 2.6 | 1961–1963 | 8 | 2.6-litre Ford Zephyr Ruddspeed I6; front disc brakes standard. |
| Greyhound | 1959–1963 | 83 | 2+2 GT on 100-inch wheelbase; aluminium body; Bristol, AC or Ford engine options; 1,020 kg. |
Authenticate stamped chassis and engine numbers against factory or club records. For the Aceca specifically, verify engine type against chassis records (AC SOHC, Bristol B/D-type or Ford Zephyr Ruddspeed) and the presence of front disc brakes and overdrive where period-correct. For the Greyhound, confirm the 100-inch wheelbase and engine option against club records.
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 |
|---|---|---|---|---|
| 2026-07-16 | Collecting Cars Online | 1955 Aceca | — | £59,500 Sold |
| 2026-01-29 | Gooding Christie's Rétromobile Paris (Lot 20) | 1958 Aceca Bristol | — | €92,000 Sold |
| 2025-11-08 | Iconic Auctioneers NEC Sale (Lot 269) | 1957 Aceca | — | £94,500 Sold |
| 2025-07-08 | RM Sotheby's Cliveden House (Lot 126) | 1957 Aceca Bristol | — | £120,750 Sold |
| 2025-02-15 | Broad Arrow Academy of Art University Collection (Lot 129) | 1957 Aceca | — | $95,200 Sold |
The Bristol-engined Aceca leads the market; the Greyhound commands a rarity premium within a thin market.
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.
