Autoblog and Yahoo may earn commission from links in this article.This 1965 Ford Mustang fastback has been reborn as a modern restomod, keeping the classic silhouette while swapping in a 5.0-liter Coyote V8, a Tremec five-speed, and a fully reworked chassis. Finished in Agate Gray over red leather with fewer than 100 miles since completion, it is built to be driven hard and looked at often. Because it is a modified car rather than a numbers-matching original, valuing it takes a different lens, and that is where a buyer's attention should go.1965 Ford Mustang FastbackBring a TrailerWhat it's worth right nowModified cars do not have a single clean benchmark, so the honest approach is to read the comparable market rather than quote one number. On Classic.com, the comp set for 1965 Mustang fastback restomods spans a very wide $74,700 to $174,336, which tells you that the builder's reputation, the depth of the build, and the presentation drive the price far more than the year on the title.AdvertisementAdvertisementCoyote-swapped first-generation Mustangs have become a recognizable category on the auction sites. A well-executed Coyote-powered 1966 fastback with a six-speed sold for $67,666 on Bring a Trailer a few years back, while top-tier, name-builder fastback restomods have reached into the mid-six figures, including one 1967 that reportedly set a Mustang record near $265,000. This car sits between those poles: a strong, comprehensive build from a selling dealer rather than a marquee commission house.1965 Ford Mustang FastbackBring a TrailerReading it against that market, fair value is roughly $55,000 to $80,000, with the quality of the chassis components and the fresh finish supporting the upper middle of that band. The current $30,000 bid with five bids and six days to go is early, and these builds typically gather momentum as the auction closes.Condition and detailsThe build sheet is the appeal. Power comes from a 5.0-liter Coyote V8 sourced from a 2018 Mustang GT, backed by a Tremec TKX five-speed and a 9-inch rear with a Quick Performance center section and a 3.89:1 limited-slip. The chassis was thoroughly modernized with a Mustangs To Fear front subframe and subframe connectors, tubular control arms, power rack-and-pinion steering, a TCI triangulated four-link rear, adjustable coilovers at all corners, and Wilwood four-wheel disc brakes. Inside, it has TMI buckets in red leather, Vintage Air climate control, Dakota Digital gauges, and a Pioneer touchscreen. It is a coherent, driver-focused package rather than a parts-bin assembly.1965 Ford Mustang FastbackBring a TrailerA couple of details deserve clarity before you commit. The listing's opening description says the build was completed in 2026, while the engine section states the Coyote was installed in 2023, so it is worth asking the seller for the precise build timeline and a full set of records. The mileage is also described two ways, as 76 miles indicated since the build in the essentials and as approximately 100 miles in the odometer section, which is a small discrepancy but one to confirm on a fresh build where every mile is documented.1965 Ford Mustang FastbackBring a TrailerThe car is a genuine 1965 fastback: the warranty number decodes to a San Jose-built fastback originally finished in Rangoon Red with a 289 V8 and a C4 automatic. That original drivetrain and color are gone, which is exactly what a restomod is and not a criticism, but buyers should understand this is a modified car, not a matching-numbers survivor. Given the low build mileage, a thorough shakedown inspection is smart, since fresh builds tend to reveal small teething items in their first few hundred miles.The offerSpecificationDetailMakeFordModelMustang Fastback (Coyote restomod)Year1965Mileage76 miles on the buildEngine5.0-liter Coyote V8PowerNot specified by sellerTransmissionTremec TKX five-speed manualDrive typeRear-wheel driveExterior colorAgate GrayInterior colorRedCurrent bidUSD $30,000Interested in this Mustang? View the listing here.What makes the first-generation Mustang uniqueThe 1964½ to 1966 Mustang defined the pony car and remains one of the most recognizable shapes ever built, and the fastback is the most coveted of the early body styles. That combination of iconic looks and a huge, well-supported aftermarket is precisely what makes these cars such popular restomod platforms. A builder can keep the timeless proportions while replacing the vintage driving experience with something modern, reliable, and genuinely quick, which is the whole point of a car like this one.1965 Ford Mustang FastbackBring a TrailerAdvertisementAdvertisementThe Coyote swap has become the enthusiast's favorite way to do it, because it keeps a modern Ford engine in a Ford, offers roughly 460 horsepower in stock form, and slots into a well-developed conversion ecosystem. Values for these builds hinge less on the donor and more on execution: the quality of the chassis, the finish, the interior, and the reputation behind the work. The parts list here, with a proper subframe, four-link, coilovers, and Wilwood brakes, is the kind of foundation that separates a considered restomod from a cosmetic one, and that is what a discerning buyer is really paying for.My takeI like this build. The component choices are sensible and enthusiast-approved, the Agate Gray and red combination looks sharp, and a Coyote-and-Tremec fastback is exactly the kind of usable modern classic that finds a happy home. My fair-value call is $55,000 to $80,000, and I would be comfortable bidding into the middle of that for a car that inspects well and comes with complete build documentation.The buying advice centers on records and reassurance. Ask the seller to reconcile the 2023-versus-2026 build timeline and the 76-versus-100-mile figures, get the full build invoices, and arrange a careful inspection given how new the car is. Confirm the ground clearance works for where you live, and treat the first few hundred miles as a shakedown. Do that, and the current $30,000 bid is an early number on a genuinely well-sorted fastback restomod.Disclaimer: This post is for informational purposes only. We are not a dealership or broker. All vehicle specifications, pricing, and availability are subject to change without notice. We are not responsible for typographical errors, omissions, or the accuracy of the provided information. Please verify all details directly with the seller.AdvertisementAdvertisementAutoblog aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission.This story was originally published by Autoblog on Jul 22, 2026, where it first appeared in the Car Buying section. Add Autoblog as a Preferred Source by clicking here.