(08 Oct 2017, 1:31 am)Jamie M wrote Hybrids can be converted back to non-hybrid vehicles - but why are people so against the b5s going on hills? They manage fine on the X21 bank every single day.

Sent from my SM-G920F using Tapatalk

That said, a problem with the current crop of hybrids is that they are "probably over-engined", says Saint. He believes there is a gap in the market for a new family of engines designed with hybrids in mind. "Once you get below 4.5 litres, engines are designed for smaller LCVs and their duty cycles. Designs are unsuitable for hybrid buses. Some operators have found, to their peril, the problems with putting a small engine in a hybrid. It won't work, because it won't stand the bus' duty cycle."