This 650-HP Radical RXC Spyder Race Car Is Bidding on Cars & Bids

A 2017 Radical RXC Spyder, chassis SPYDER0037, is currently up for bid on Cars & Bids, and it's the kind of listing that highlights just how far apart the words "race car" and "sports car" really are. This isn't a road car wearing a track package; it's a purpose-built prototype-style racer finished in black and orange, and it will change hands with no title, no keys, and no intention of ever touching public pavement.

Under the composite, carbon-trimmed bodywork sits a Ford-sourced 3.5-liter EcoBoost twin-turbo V6 tuned to roughly 650 horsepower, sending power to the rear wheels through a Quaife six-speed sequential gearbox. Radical built the RXC Spyder to reach 60 mph in well under three seconds and gave drivers adjustable brake bias and variable power steering assist to dial the car in for whatever circuit they're tackling. This particular car rides on center-locking wheels, 17-inch front and 18-inch rear, and carries a Sparco steering wheel, an AiM data-logging system, and a Lifeline fire suppression system, all standard fare for something meant to live on road courses rather than commutes. Ford's little turbo six has found its way into all sorts of unlikely machines lately, including this Ford EcoBoost-swapped classic Mini Cooper Motorious featured a while back.

According to the seller, the current owner bought this RXC Spyder in 2021 and has added roughly 4,000 miles chasing lap times, most notably at Spring Mountain Motorsports Ranch in Nevada. A documented off-track excursion there damaged the front end and cracked a chassis support bar, a known trouble spot on the RXC, and the seller says every damaged part was replaced with new factory components sourced directly from Radical. Buyer questions in the comments also touched on rumors of flood damage tied to a Nevada storm that once hit Spring Mountain's facility; the seller maintains the car was inspected afterward and cleared, and that it has since been tracked several more times without issue.

Because it's a competition car, this RXC Spyder will be sold on a bill of sale only, with no title and no keys included, and bidding stood at $20,000 with the auction still open as of this writing. That's in line with what unregistered, track-only exotics tend to bring compared to their street-legal cousins, and it's a good reminder that shopping one of these takes the same homework any serious track-day buyer should do before jumping into a bidding war.

Radical doesn't show up in Hagerty's valuation tools the way a 911 or a Corvette does, largely because cars like the RXC Spyder are sold on bills of sale rather than through the title system that Hagerty's price guide is built around. That doesn't mean the insurer is a stranger to the brand, though. Hagerty fields its own Radical SR3 in the UK-based Hagerty Radical Cup racing series, a sign that the collector-car world is starting to take purpose-built track machines seriously even without a traditional price history to lean on. For now, values for cars like this RXC Spyder are set the old-fashioned way, by what bidders are actually willing to pay on auction day.

With the clock still running and bidding in the five figures, this RXC Spyder's final sale price will say a lot about where the market for modern, no-compromise track weapons is heading. Buyers who want to keep tabs on the broader auction calendar can check out this roundup of classic and collector car auctions worth watching, or browse recent finds like this kei-sized Subaru Sambar fire truck that turned up on Cars & Bids and this 2004 Subaru WRX STI track car for a sense of just how wide the track-car and auction world has become.