The Demio is Mazda's small supermini (Mazda2 in most markets) and a 2019 petrol automatic will usually be the 1.5 Skyactiv‑G with the Skyactiv‑Drive 6‑speed automatic. The drivetrain is generally durable, but automatics can feel less economical than manuals at steady motorway speeds and will show their age in heavy urban stop/start use — ask about gearbox servicing and listen for any shift hesitation. The small boot and rear space are typical supermini compromises: fine for daily shopping and a child seat, less so for bulky family luggage.

• Automatic gearbox: smooth up‑and‑down shifts with no hesitation or harsh kick; check if AT fluid/service history is recorded and watch for torque‑converter shudder on take‑off.
• Suspension and steering: listen/feel for knocks over bumps and check for worn front/rear bushes or creaky drop links — 7 years on these often need attention.
• Body underside, sills and wheelarches: check for beginning rust or bubbling, especially around rear wheelarches and lower door sills in Irish conditions.
• Rear seats and ISOFIX points: verify easy access and solid ISOFIX mounts if you plan to fit child seats regularly.
• Tyre and brake wear: uneven tyre wear or dragging on one side can indicate tracking or calliper issues; check brake discs for scoring and pads for remaining thickness.