The All-New 2027 Cornerstone Luxury Motorhome | Official Unveiling | Freightliner Custom Chassis

When we set out to engineer the chassis for the all-new 2027 Cornerstone Series 6 luxury motorhome, we had one goal: build something that changes how every mile feels, not just how the coach looks. Today, that build goes public. This is the official press conference and unveiling of the MY2027 Cornerstone, a boutique Class A diesel motorhome built on our all-new PowerGlide® SL Chassis, engineered right here at Freightliner Custom Chassis. You know chassis. You know that the coach you choose to sleep, cook, and live in is only as good as what it rides on. When we partner to build something, we do it because we believe it sets a new benchmark for ride quality, for confidence on the road, for how far you can go before you want to stop. The Cornerstone Series 6 is that partnership brought to life. The PowerGlide® SL pairs a 605 HP Cummins X15 with Koni custom-tuned suspension, ZF Independent Front Axle, and Bendix air disc brakes — so driver fatigue goes down, handling confidence goes up, and the road ahead stays wide open. Whether you're a seasoned diesel pusher owner or stepping into your first Class A RV, this is what happens when the chassis underneath is built for the way you actually drive. In this unveiling, you'll see: The vision behind the reimagined Cornerstone brand and why this partnership exists The PowerGlide® SL Chassis: what we built and what it means for how you drive What "Performance Refined" looks and feels like in the real world How a limited initial run of just 24 coaches becomes something the industry hasn't seen before PowerGlide® SL Chassis — built for the long haul: 605 HP Cummins X15 · 1,950 lb-ft of torque · Allison 4000 MH transmission · ZF Independent Front Axle · Custom-tuned Koni shocks · Bendix air disc brakes with ABS · DriveTech ergonomic driving system · OptiView all-digital gauge display · 5-year / 100,000-mile warranty · My 24/7 Direct factory support Learn more about Cornerstone: https://cornerstoneluxury.com Explore the PowerGlide® SL: https://freightlinerchassis.com