Would this fit in a 1999 Mazda Demio?

Hi Saffron, Thank you for your enquiry.  Before selecting a child restraint, it is important to take into account the child’s weight, height and age, any physical, developmental and behavioural considerations, the type of restraint and vehicle. We have a range of restraints to choose from to suit various needs and price points here at Baby On The Move. You can view the range by following the link https://www.babyonthemove.co.nz/car-seat. However, regarding installation to a vehicle we would recommend visiting your nearest Baby On The Move store where one of our expert Child Restraint technicians can assist in helping you find the right capsule for you, your child and your vehicle. To find your nearest store and contact details you can follow the link: https://www.babyonthemove.co.nz/store-locations/ which will take you to our online store finder. We hope this has helped with your query.