It was a good thing, then, that the engine really came into its own when revved, with a smooth and progressive delivery accompanied by a glorious howl from the quadruple tailpipes. (evo.co.uk)
Progressive delivery means that you pay for your sample in instalments and receive it in the same fashion. (advancedwriters.com)
According to the latest statistics, Progressive Delivery assignments are getting really popular these days. (advancedwriters.com)