To fit three child seats side by side you usually need a car with three individual seats in the second row, enough width across them, and ISOFIX points or seat belts in the right places for the seats you use. Large MPVs and some seven-seat SUVs are the most likely to work, but the only way to be sure is to test-fit your own seats in the car.

Three child car seats fitted across the back of a family car

What should I check before buying a car for three child seats?

Seat layout. Three separate seats in the second row are much easier than a bench with a narrow middle seat.
ISOFIX positions. Many cars only have ISOFIX on the two outer seats. Check how many positions there are and where, in the handbook or on the car itself.
Width. Measure your child seats. Some are much wider than others.
Seat belt access. With three seats side by side, it can be hard to reach the buckles. Try it before you buy.
Third-row access. In a seven-seater, check whether the third row is still usable with child seats fitted in the second row.
Boot space. Make sure there is still room for a pushchair with all seats in use.

Which types of car usually fit three child seats?

Larger MPVs with three individual second-row seats tend to be the easiest. Models families often look at include the Volkswagen Touran, Citroën Grand C4 SpaceTourer, Ford Galaxy and S-MAX, SEAT Alhambra and Volkswagen Sharan. Some seven-seat SUVs, such as the Peugeot 5008, can also work.

ISOFIX positions and seat widths vary by model and year, so treat this as a starting point rather than a guarantee. Check the handbook for the exact car and try your own seats in it.

What are the rules on child car seats?

In the UK, children normally have to use a child car seat until they are 12 years old or 135cm tall, whichever comes first. Never fit a rear-facing seat in front of an active airbag. The government's child car seat rules explain the details and exceptions.

What if my current car will not take three seats?

Before changing car, it is worth looking at narrower child seats. Some designs are made specifically to fit three across, and switching one or two seats can sometimes solve the problem. A specialist child seat retailer can help you check what fits your car.

Common questions

Can I fit a child seat in the middle using a seat belt?

Often yes, if the seat is approved for belt fitting and the middle seat has a three-point belt. Check both the child seat instructions and the car's handbook.

Is a seven-seater better than a five-seater?

Not always. Some five-seat MPVs fit three seats across more easily than some seven-seat SUVs. Seat layout matters more than the number of seats.

Should I bring my child seats when I view a car?

Yes. Testing your own seats is the best way to find out whether they fit and whether you can reach the belts.

Looking for a family car in Barnsley?

anycolourcar.com is based in Barnsley, South Yorkshire. Browse our cars in stock and bring your child seats along to try them in the car. Call sales on 01226 574410 to arrange a time. You can also read our guide to choosing a family car.

Updated October 2026.

Which Cars Fit Three Child Seats? What to Check Before You Buy