German giant motorhome manufacturer Hymer uses ‘B’ or ‘B-class’ to denote its premium A-class range; its lighter, more affordable A-classes are badged Exsis-i. This distinction helps the B-class stand apart from the rest of the pack. Hymer says its B-class has been the biggest-selling motorhome series in Europe, with 55,000 units sold in the last 30 years. However, it also offers a two-strong ‘SL’ range, a cut (and around £22,000) above the standard B-class.

At this £100,000 price point, the Hymer B 798 SL variants aim for buyers of expensive luxury liners: discerning motorcaravanners who use their vehicles a lot, requiring good performance in challenging climates, often off-grid. Buying an SL means plenty of change from competitors’ luxury liner A-class four-berth motorhome prices.

There are two models, both with tag axles: the 778 SL, with fixed twin single beds, and the 798 SL, with an island bed, which is on test here. Based on a Fiat Ducato paired with an Al-Ko chassis, the 798 SL is 8.5m long, features a storage double floor and is fully winterised. Our test vehicle had been upgraded to a 170bhp 3.0-litre engine with a Comfort-Matic transmission; with this and other options, its maximum weight was 5000kg with a 596kg payload.