carbuddynetwork
Free, carefully sourced reference sites and tools for people who own, or are shopping for, a particular car. No paywall, no login.
Reference
Porsche 911, Boxster, Cayman, Cayenne, Macan, Panamera and Taycan: specs, known issues, fitment, service intervals and buying advice for every model year.
Honda S2000, AP1, AP2 and CR, US and Japan: specs, every paint and interior, tires, known issues and buying advice.
Saab 9-3 and 9-5, 1999–2011, Viggen included: specs, every paint, tires, known issues, fitment, service intervals and buying advice for every US model year.
Cadillac CT5-V and CT4-V Blackwing, 2022–2026: specs, every paint and interior, tires, known issues, fitment, service intervals and buying advice, with a source for every figure.
Tools
What Bring a Trailer auctions say about a model: every sale priced, comment threads read, and what a good one costs.
National Porsche dealer inventory in one place.
Every Cadillac CT5-V and CT4-V Blackwing for sale at US dealers.
Preview your car in vinyl wrap colours from 3M, Avery Dennison, Inozetek, KPMF, ORAFOL and STEK. Drop in a photo, select the paint and try colours; the photo stays in your browser.
One search across eleven car sites at once: Bring a Trailer, Cars & Bids, Hagerty, PCar Market and eBay auctions, plus Cars.com, CarMax, Carvana, Hemmings, Craigslist and Porsche Finder.
Apps
Track mileage, fuel and running costs across every car you own. Your data stays on your iPhone or in your own Google Drive.
Your co-driver for everyday roads. Mark passing lanes, residential zones and tight corners, and it calls them out before you reach them, like a rally co-driver reading pace notes.