Most 2012–2017 Swift petrol automatics use a small 1.2‑litre K‑series type petrol engine paired to a CVT/automatic — economical and simple, with no diesel DPF or AdBlue to worry about. CVT boxes feel different to a conventional auto (smooth but can rev high and feel 'rubbery' under acceleration) and buyers should check the transmission fluid/service history; the engine itself is generally robust and parts are inexpensive in Ireland.

• CVT behaviour on a long test drive — listen for slipping, hesitation, jerky upshifts or unusually high revs under load and check for any burnt-smell (askseller when the transmission fluid was last changed).
• Condition and service history for the automatic (CVT) fluid and mounts — many CVTs need periodic fluid changes to avoid wear.
• Suspension and bushes — feel for clunks, knocks or uneven tyre wear which are common on 12‑year‑old small cars.
• Rust around sills, wheel arches, tailgate and underside — Irish salt use accelerates corrosion on older small hatchbacks.
• Engine cooling and oil condition — check for oil leaks around the cam cover, steady coolant temperature and that fans/heaters work properly.