350-mile test! New Mercedes GLC vs BMW iX3 ROAD TRIP

In our in-depth BMW iX3 vs NEW Mercedes GLC Electric comparison, we pit our reigning Car of the Year against a brand-new (and formidable) premium electric SUV from Mercedes-Benz. On an epic 350-mile road trip, we conduct a real-world range test to find out how many miles you can REALLY expect from a full battery on a long motorway trip. On paper, the BMW iX3 should have the edge thanks to its enormous 108.7kWh battery. However, the new Mercedes GLC has a potential game-changing Porsche Taycan-style two-speed automatic gearbox, designed to improve its high-speed cruising efficiency. 🔔 Don't forget to subscribe! If you enjoyed this 350-mile road trip test, hit subscribe to keep up to date with our latest in-depth reviews, group tests and top 10s: @whatcar 🚗 Looking for a specific model? Read our in-depth reviews on the BMW iX3 and Mercedes GLC Electric here: http://www.whatcar.com We charge both of these electric cars to 100% and drive them in convoy until their battery levels hit 10%. We then work out their real-world range and efficiency, and find out how long they actually take to charge up using ultra-rapid public charging points. Beyond the motorway cruise, we take a detour to thoroughly review their driving manners, interiors and test out their practicality. With the Mercedes GLC offering optional air suspension, can it deliver a level of ride comfort and refinement to dethrone our current class-leader? Finally, we break down the monthly PCP finance costs, total journey expenses and crown an overall winner in this incredibly close group test. Watch to find out which SUV comes out on top! Presented by: Will Nightingale & Dan Jones Videography by: Tom Goodban What Car? is the UK's biggest car-buying brand and has been helping buyers for more than 50 years. Our tests are widely regarded as the most independent and in-depth. Our YouTube channel brings you trusted reviews on all types of car, plus car news, reveals and features. In-depth written reviews are available on our website whatcar.com, where you'll also find advice features and the latest new and used car deals. Follow What Car? here: LIKE What Car? on Facebook: https://goo.gl/yv5jF8 FOLLOW What Car? on Twitter: https://goo.gl/SJzmT8 Check out our full video catalog: https://bit.ly/2W81iu9 #BMWiX3 #MercedesGLC #ElectricSUV #RangeTest #EVRoadTrip #WhatCar #CarReview #PremiumEV #ElectricVehicles #newcar2026 Video chapters: 0:00 Intro: BMW iX3 vs Mercedes GLC Electric 0:58 Price & Specs: Two-Speed Gearbox vs Big Battery 3:33 Test Rules & The Range Test 5:15 Motorway Driving Impressions 6:41 Country Road Driving 9:18 BMW iX3 Interior Review 12:06 Mercedes GLC Electric Interior Review 15:25 Running Out of Charge! 18:19 Real-world Range Figures 19:45 Efficiency Comparison 20:55 Cost of the Trip 21:38 Charging Times 22:19 Verdict: Which is Better?

Added 18 Oct 2026