AC Ace Values: What to Pay

The Ace is the expensive AC of the 1950s, and the reason is one word: Cobra. Because Carroll Shelby's V8 car was built on the Ace's chassis, the roadster carries a collector premium that its closed sister, the Aceca, simply does not, even though the two share a chassis, suspension and engines. Expect an Ace-Bristol to cost two to three times what a comparable Aceca-Bristol does.

Recorded auction results

Published auction results are the only public evidence of what these cars actually change hands for. Each figure below comes from the auction house's own lot page and includes buyer's premium where the house states it; follow the link for the full catalogue description and condition notes.

Taken together, good Ace-Bristols have clustered around US$200,000–US$250,000 over the last decade, with the exceptional BEX 223 reaching US$401,000 at Amelia Island in 2019 and the Ford-engined 2.6 “Ruddspeed” car making US$500,000 at Monterey in 2021. For comparison, Hagerty's published price guide puts a 1957 Ace-Bristol at US$287,000 and a 1963 Ace-Bristol at US$273,000 in “good” (#3) condition. No reliable public figure could be found for the AC Light Six-engined Ace on its own; it sits below the Bristol car, but by how much varies case by case, confirm against current sales rather than any headline number.

What moves the price

Engine first: Bristol over AC, and the 37-car Ford 2.6 above both on rarity. After that it is originality and paperwork. Matching-numbers cars command a clear premium; period competition history, Le Mans, SCCA, club racing, adds a great deal; and re-engined or rebodied cars (including Aces later fitted with V8s) trade on different terms entirely, as BEX 1146 above illustrates. Structure matters too: the aluminium body over a composite steel-tube and ash frame suffers both galvanic corrosion and timber rot, and both are expensive and hidden.

The Aceca alternative

If the Bristol engine and the Tojeiro chassis are what you actually want, the coupé delivers both for far less money. Recorded Aceca results sit in a roughly £60,000–£100,000 band for AC-engined cars and around US$100,000–US$192,500 for Aceca-Bristols, see the Aceca what-to-pay guide and the full Aceca values page. The Ace vs Aceca comparison weighs the two directly, and the Ace variants page explains which engine you are paying for.

This is market context, not financial advice. Values change; verify every figure against current sales before you commit.

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