The Sportsmobile ProMaster RB 114s puts serious insulation credentials front and center: wool-lined walls, doors, and ceilings paired with cork underlayment and radiant barrier foil give the interior a thermal and acoustic quality you rarely find in a Class B. A 3,000-watt true sine inverter with Bluetooth monitoring, smart MPPT solar, and a 200Ah AGM battery bank mean off-grid stays don't require creative rationing. The seating and sleeping setup is genuinely flexible, with dinette or gaucho configurations that convert in under a minute via steel roller tracks, and twin beds that slide together for a Queen bed when you need the extra width. The ProMaster chassis itself makes urban stops easier than most motorhomes, with a tight turning radius and front-wheel-drive that handles tight parking situations well, though drivers who prefer rear- or all-wheel-drive may want to factor that in for serious off-pavement use.
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Class b motorhomes that share features with the Promaster RB 114s, like chassis ram.
