The Jaguar XJ X308, produced from 1998 to 2003, marked a significant moment for the brand. It retained the classic XJ silhouette established decades earlier but was the first XJ powered exclusively by Jaguar's new AJ-V8 engine. This model refined the X300's platform with softer lines, an updated interior, and V8 power ranging from 290 horsepower in the XJ8 to 370 horsepower in the supercharged XJR.
Collectors are drawn to the X308 as the final chapter for the traditional XJ design. It offers a bridge between vintage aesthetics and modern performance, especially the potent XJR and the luxurious Vanden Plas or Daimler Super V8 models. While early V8s had well-documented issues with timing chain tensioners and Nikasil cylinder liners, most surviving cars have been sorted, making them reliable when properly maintained.
The market for the X308 is still very accessible, with an average sale price around $10,000. However, a significant gap exists between neglected daily drivers and pristine, low-mileage collector examples. The best XJR and Super V8 models are seeing values climb as enthusiasts recognize their importance and performance.
Buying Tips
- Check for proof of updated secondary timing chain tensioners; the original plastic units fail and can cause catastrophic engine damage.
- On pre-2000 cars, ask about the Nikasil cylinder liner issue. High-sulfur fuel is no longer a problem, but a car with a history of a factory engine replacement is a plus.
- The ZF 5-speed automatic transmission was marketed as 'sealed for life,' but it requires fluid and filter changes. Check for smooth shifts and any signs of hesitation.
- Inspect the interior for a sagging headliner, a very common problem. Also check the condition of the wood veneer for cracking and the leather seats for wear and shrinkage.
- Look for rust in the front and rear wheel arches, along the sills, and at the base of the front and rear windscreens.
Prices range from as little as $430 for project cars to $33,583 for pristine, top-specification examples.
1,610 Jaguar X308 XJ vehicles have been tracked across auctions and listings on Hypercars, with 602 currently live.
Data sourced from Bring a Trailer, Cars & Bids, eBay Motors, PCarMarket, and Collecting Cars. Updated daily.
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