The previous Swift was something of a bastion of naturally aspirated petrol engines, its ubiquitous, hard-edged, variable-valve peppiness best exemplified by the outgoing Sport version.
The earnestness suited the sorted supermini well, but it doesn’t take long in the Boosterjet version to consider its turbocharged, electrically tweaked delivery a worthy upgrade.
Principally, this accolade is earned by the calibre of the 1.0-litre triple, which, although less potent and free-spirited than Ford’s equivalent, manages to evince some of the same warbling, cheery energy. (In part at least, Suzuki has adopted a similar approach: deliberately unbalancing the crank counterweights to turn side-to-side vibrations into vertical ones – and then damping them via the engine mounts.)
The modestly forceful whoosh of trilling acceleration yielded at 2000rpm with the arrival of peak twist, though, is Suzuki’s own.
Any battery-fed assistance is impossible to discern, except perhaps in the unexpected keenness of the progress. We recorded 10.5sec to 60mph from a standing start – commendable for a compact car handicapped by two oversized occupants.