Number 792 of Porsche's 1,963 production run, this 2004 '40 Jahre' is a particularly interesting 911.

Finished in GT Silver Metallic with black leather, it was built to celebrate 40 years of the model and features the distinctive anniversary detailing that sets these apart from an ordinary 996 Carrera.

What makes this example especially appealing is the amount of history that has stayed with it.

Having covered 149,754 miles with four former keepers, it certainly hasn't spent its life tucked away, but there is a reassuring amount of paperwork documenting its upkeep.

The service book has been stamped consistently throughout, with a mixture of Porsche main dealer and independent servicing, alongside a sizeable collection of invoices and previous MOT certificates.

One of the most significant details is the replacement engine fitted at approximately 50,000 miles.

That's an important part of its story, particularly for anyone familiar with the 996 generation, and is worth taking into c...