About BySpec
Built for the buyer
who's been searching for months.
Porsche buyers aren't impulse buyers. They research obsessively, they know the difference between a 997.1 and 997.2, they have a spec list that's been refined over years. BySpec is the first UK marketplace built to match that mindset.
The problem
AutoTrader shows you the model.
Not the car you actually want.
You've been looking for six months. You know exactly what you want: 997.2 Carrera S, manual, PSE, Sport Chrono, FPSH, no sunroof. You've seen sixty listings. Maybe four had the spec properly described. You called sellers who didn't know whether their car had PASM. You wasted three weekends on viewings that could have been ruled out with a single filter.
The problem isn't supply. There are good Porsches for sale. The problem is that generic marketplaces weren't built for buyers who care this deeply — buyers who know that spec, condition, and provenance are the whole story, not an afterthought in a free-text description.
Porsche buyers research for months before they buy. They're not browsing — they're hunting for a specific car. BySpec gives them the tool they've always deserved.
“997.2 Carrera S. Manual. PSE.
Sport Chrono. Full history. No sunroof.”
Every serious Porsche buyer has a list exactly like this. BySpec is the first marketplace that lets them search by it — and the first that demands sellers answer it properly.
How it works
Simple for sellers.
Built for obsessive buyers.
Sellers record the full spec and history
A structured form walks through every factory SA code for the generation — Sport Chrono, PSE, PASM, PCCB, PTS and more. Service history entries, provenance, inspection status. Takes 5 minutes. Free to list.
The spec is stored — not buried in a description
Every option and every service entry is recorded in a structured database, not a free-text field. Searchable, filterable, permanent. The spec exists even if the seller forgets to mention it.
Buyers filter to their exact car
Manual, PSE, Sport Chrono, full Porsche history — set your filters and see only cars with all of it. Every result is guaranteed. No false positives, no reading between the lines of a vague description.
Enquire knowing exactly what you're buying
You've seen the spec, the service stamps, the options. You contact the seller already informed. No wasted calls. No surprises at viewing. Just a direct conversation about a car you genuinely want.
Coverage
Water-cooled, UK market.
BySpec covers water-cooled Porsches from 1997 onwards — the generation where factory option catalogues became deep enough to matter. These are the cars enthusiasts hunt for by spec: the specific 997.2, the low-mileage 991.1 GT3 with touring package, the rare-spec 992 GT3 RS. UK private listings only.
911
997 · 997.2 · 991.1 · 991.2 · 992
Cayman / Boxster
987 · 981 · 718
Cayenne
9PA · 92A · 9YA
Macan
95B
Panamera
970 · 971
Air-cooled 911
Coming later
A note on accuracy
Option data is self-reported by sellers. BySpec does not independently verify specification — but serious Porsche sellers know their cars intimately, and the enthusiast community keeps each other honest. Sellers confirm accuracy on submission. If you spot a discrepancy, use the report link on any listing and we'll investigate promptly. A marketplace is only as trustworthy as the people in it — and Porsche people have a reputation to uphold.
Join BySpec
For buyers who won't settle.
Sellers who know their car.
Free to list. Full spec and service history in 5 minutes. Your car in front of buyers who have already filtered by PSE, manual, and full history — and are ready to move.