Under Highway Code Rule 57, all dogs must be “suitably restrained” when travelling in a vehicle in the UK. Failure to comply can result in a fine of up to £5,000 and may invalidate your car insurance. But beyond the legal requirement, an urestrained dog in a 30mph crash becomes a projectile weighing 10-20× their body weight.
Restraint Options Compared
| Type | Crash-Tested? | Best For |
|---|---|---|
| Booster seat | Some models | Small dogs / Elevated view |
| Car harness + seatbelt | ✅ (Kurgo, EzyDog, CarSafe) | All sizes / Everyday use |
| Car crate | Varies | Large dogs / Boot travel |
| Dog guard | ❌ (containment only) | Multiple dogs / Boot barrier |
⚠️ Most “car seats” are comfort booster seats, NOT crash protection. For actual crash safety, use a separately crash-tested harness (e.g. Kurgo Tru-Fit, EzyDog Drive, CarSafe) attached to the seatbelt. No booster seat alone will protect your dog in a collision.
See also Best Dog Car Crate and Best Dog Car Seat Cover.
🚗 Recommended Dog Car Seats
We’ve hand-picked these products for you. As an affiliate, we may earn a commission if you purchase through our links, at no extra cost to you.