Rare AC-Engined 1958 AC Aceca Bidding on Bring a Trailer

A rare slice of 1950s British GT motoring has surfaced on Bring a Trailer, where a 1958 AC Aceca finished in bright red is drawing bids from enthusiasts who value hand-built coachwork over modern conveniences. As of this writing, the auction sits at $7,100 with bidding still open ahead of its July 29 close.

Unlike the open-top AC Ace that inspired it, the Aceca wrapped the same tube-frame underpinnings in a fixed-roof body when AC introduced it at the 1954 London Motor Show. Both models share ash-and-aluminum construction, but the Aceca's closed cabin, hatchback-style rear door, and extra weather protection made it the more livable choice for owners who wanted Ace performance without giving up a roof. AC initially fitted the Aceca exclusively with its own 2.0-liter overhead-cam inline six, an engine design with roots reaching back to just after the First World War, before later opening the model up to Bristol- and Ford-sourced six-cylinders. Only about 151 of the AC-engined cars were built between 1954 and 1963, out of a total Aceca production run of a little over 300 across all three engine options.

This particular example, chassis AE650, retains its original AC inline six, paired with a four-speed manual gearbox and triple SU carburetors that were rebuilt as part of a refurbishment carried out between 2007 and 2010 by Morgan West in Santa Monica, California. That work also included a repaint in the car's current red over a black leather interior, along with a re-cored radiator and heater. Underneath, the Aceca still relies on period-correct transverse-leaf independent suspension and finned aluminum drum brakes at all four corners, while 15-inch chrome wire wheels with knock-off spinners and a banjo-style steering wheel round out the driving experience. Records indicate the car remained with two owners in England, configured for right-hand drive, before it was brought to the United States in the mid-1980s. It shows 53,000 miles today and carries transferable New York registration through selling dealer 1600veloce.

For buyers trying to gauge whether the current bid represents good value, Hagerty's Valuation Tools are a useful reference point. Hagerty pegs a #3-condition ("Good") 1958 Aceca in this AC-engined Base configuration at $83,000, though that figure has softened slightly, down about 2.1% recently. The broader Aceca market has ranged widely at auction over the past three years, from a low of $20,441 up to a high of $286,000, with the most recent public sale landing at $108,640 this past May through Bonhams. That spread underscores just how much condition, originality, and provenance affect what a given Aceca will bring, and the current Bring a Trailer bid, still well short of Hagerty's benchmark, has plenty of room to climb before the auction ends.

Values for the entire AC lineup have been pulled upward in recent years by Shelby Cobra money, since the Ace's chassis eventually became the basis for Carroll Shelby's V8-powered creation. Buyers curious about that side of the family tree can revisit Motorious's earlier coverage of a 1958 AC Ace-Bristol roadster and a 1959 Bristol-powered AC Ace, both of which sold through Bring a Trailer. For a look at how far into V8 territory an Aceca can go when an owner strays from factory specification, Motorious also previously featured a restored 1958 Aceca hiding a Ford V8. This latest Aceca, by contrast, remains true to its original AC-engined configuration, an increasingly rare trait as more of these hand-built coupes get modernized under the hood.

With bidding still active as this listing heads toward its close, the final sale price will be one more data point for anyone tracking where the market for these rare British GTs is headed.