That computer-aided work is made unimaginably easier thanks to a late piece of forethought when Bentley was being wound up in 1931: the records and engineering drawings of these cars remain to this day. They are as priceless to Kingsbury as they are Bentley.
“They’ve been properly scanned,” Ewen explains, “so they don’t pixelate too quickly. When they closed the factory in 1931 they’d opened a service department in Kingsbury – hence why we’re called Kingsbury – and when they were throwing everything on the bonfire they took one set of everything in case they needed them.
“The drawing for the supercharger doesn't exist any more, though, but what was produced and what was drawn were two different things. Dimensionally it would have been from the drawing, but the actual shape was from a chisel and sanding block – the elements that make the draught angles and compound radii that make the form and beauty. Francis Galashan scanned one for us and we used that to make a mould so it looks absolutely right. The drawing would have looked boxy and strange, so that’s where 3D scanning really has its use. The rest is by drawing.”
This experience has been capitalised upon by Bentley today, bringing the expertise Bentley had lost through the years back to its inhouse ‘vintage’ cars. In 2019, Bentley revealed plans to create 12 new ‘Blowers’, the supercharged cars championed by racer ‘Tim’ Birkin, and to disassemble it original car to 3D scan to ensure the copies are exact.
Ewen self-deprecatingly defers to Bicester Heritage for him becoming involved in the project. “Bentley CEO Adrian Hallmark and others were here with Dan, and happened to stick their heads in. They’d never have come to my shed three miles away. It would only ever have been here. That was the only reason I was asked to quote. I wasn’t going to until Robert Glover came in and told me to. So I went away and over the weekend wrote out: ‘Engine: price. Supercharger: price. Gearbox: price.’ That was it.
“They came back and said we can’t give you the engine but we’d like to talk to you about the gearbox. I went to see them and they asked me to knock a bit of money off, and I did. They then said: ‘What about the front axle?’ We’ve ended up making the whole front axle assembly, the brakes, the gearbox, the propshaft, the rear differential and the back axle.
“We bed the brakes in on the mill, because we built a jig so the brakes are done before they’re even fitted to the car. You’re on to 95% braking efficiency immediately, which we like because the brakes are notoriously difficult to bed in.”