Additional weight kills acceleration in light cars such as the Westfield, so it’s no surprise that when we put two people and a tank of fuel on board the Sport Turbo, we recorded a 0-60mph time in the mid-4.0sec bracket. That’s a consistent, repeatable time, and a very respectable one, given the turbo engine’s whooshy, torquey nature and the fact that the Westfield wants a gearshift before it gets to 60mph.
On a lighter fuel load and with one occupant, the Westfield is capable of rather quicker times. How fast? In one direction we managed 0-60mph in 3.99sec. That’s not our official figure, but it’s the one you might choose to quote for impressing bystanders.
In-gear flexibility through each of the MX-5-sourced gearbox’s ratios is similarly impressive. The Vauxhall engine takes just a little while to spool up from lower revs, but while it offers a credible 185lb ft up at 5000rpm, it feels to us like plenty of torque is on offer from lower down. Coupled to a 665kg kerb weight, it makes for very flexible performance and the Sport Turbo is happy to be left in a higher gear than you’d pull in a Caterham or Ariel Atom if you were after the same acceleration. In fourth, the Westfield can accelerate from 30-70mph in just 6.8sec, while through the gears it takes a blistering 4.7sec. This is no shabby performer.