Looking back with the benefit of hindsight, we might observe that if the W-Type had been designed and produced in 1936, it would have been regarded as reasonably modern and up-to-date. Elegant even? Umm, perhaps not, but behind that restrained polished radiator, was a tough heavyduty chassis and (unlike the tiller-steered Freighter), a conventional drivetrain with an in-line power unit. True, it was still basically a variant of the tried and tested SD side-valve unit, but now increased in capacity, it developed 70bhp. And although SD literature kept pretty quiet about it, this conventional driveline would have made it easy to fit a diesel engine as an alternative. But interestingly, even well into the 1950s, many local Council customers continued to specify petrol engines on the basis that they were…