[1][2] Structurally, the Paramount was similar its predecessor, the Supreme, utilising 25 millimetres (0.98 in) square tubing to form the frame.

The bodywork was treated inside and out to resist rusting, and utilised a continuous steel panel below the windows that was Zintec-coated for corrosion protection.

Paramount 4000 bodied Neoplans were equipped with a Mercedes OM403 16-litre 352 brake horsepower (262 kW) V10 engine with a choice of either maaual or ZF HP500 gearbox.

Mk.II bodies on front-engined Ford R-series chassis retained the mk.I frontal treatment as the large grille was needed to ventilate the radiator.

The driver sat lower in the body so that passengers had a better view ahead, the headlights being closer to the road than usual.

It had bonded glazing as standard and also featured some more obvious changes to the design, notably the replacement of the original sloping and small "feature windows" with one small pentagonal window immediately behind the cab or door, with Plaxton's "castle" logo being engraved on it (though this was omitted on the shortest 8.5 metre bodies).

The Paramount 4000 mk.II double decker remained in production with no external changes, although in 1989 these did receive a mk.III type frontal treatment.

[7] The Expressliner was equipped as standard with side-loading luggage lockers, a toilet and an on-board servery in Rapide specification, as well as a windowless, moulded plastic rear end featuring an embossed National Express 'double-N' logo, which could be replaced by a standard Paramount rear end when the coach was no longer used for National Express services.

Like its predecessor the Mini Supreme it was built at Plaxton's southern service centre at Ware rather than the main Scarborough factory.

Only one was built, as the Beaver minibus body made by Plaxton's Reeve Burgess subsidiary could be sold at a more competitive price.