Built on Ford’s reliable Transit chassis with the 2.0 TDCI engine, this 6.29-metre motorhome strikes a balance between family space and everyday usability that many manufacturers struggle to achieve.
Size and Practicality of the Flash C646
At 6.29 metres long, 2.35 metres wide, and 3.1 metres tall, the Flash C646 sits in that sweet spot where you’re getting proper living space without venturing into coach-built territory. You’d find this size manageable on most UK roads, though you’ll want to think twice about narrow Cornish lanes or tight Scottish Highland passes.
The 660-kilogram payload might seem generous until you start loading up for six people. Factor in personal belongings, food, water, and the inevitable accumulation of holiday purchases, and you’ll need to be quite disciplined about what comes aboard. It’s worth noting that this payload includes passengers, so a family of four adults would already consume a significant chunk before you’ve packed a single bag.
Those double garage doors at the rear are cleverly designed, with the larger opening on the offside making loading bulky items more straightforward. When you’re trying to squeeze bikes, awnings, and outdoor chairs into the space, every centimetre of door opening counts.
Driving the Chausson Flash C646
The Ford Transit 2.0 TDCI engine paired with a six-speed gearbox should provide adequate performance for most UK touring scenarios. You’d likely find it comfortable cruising on motorways, though don’t expect sports car acceleration when joining dual carriageways with a full load aboard.
Cruise control comes as standard, which proves invaluable during long stretches on the M6 or A1. The cab air conditioning will be appreciated during summer tours, particularly when you’re stuck in holiday traffic heading to popular destinations. Electric mirrors and windows add a touch of convenience that you’d miss if they weren’t there.
The Bluetooth connectivity means you can keep your phone connected for navigation and hands-free calls, essential when you’re coordinating arrival times with campsites or checking opening hours for attractions.
Living Areas in the Flash C646
The lounge arrangement centres around four belted seats (two facing forward, two facing back) that convert into a double bed when needed. This creates a proper social space where six people can actually sit together for meals or evening relaxation, rather than perching awkwardly on bed edges.
Storage appears well thought out, with cupboards above and below the seating area. When you’re living with six people’s belongings, every storage nook becomes precious real estate. The tall wardrobe next to the over-cab bed would be particularly useful for hanging clothes that you’d rather not have creased.
The 141-litre fridge represents a significant upgrade over smaller motorhomes, though with six people generating food storage needs, you’d still need to shop more frequently than you might at home. Multiple 12V and 240V sockets scattered throughout the living area mean everyone can keep their devices charged without fighting over power points.
Flash C646 Sleeping Arrangements
The sleeping configuration offers genuine flexibility. The over-cab double bed provides a permanent sleeping space that doesn’t require daily conversion, whilst the lounge converts to accommodate another couple. The real cleverness lies in the rear garage area, which transforms into bunk beds when you need maximum sleeping capacity.
This convertible system means you could tour as a couple with maximum storage space, then accommodate visiting family or friends by converting the garage to sleeping quarters. The bunks would likely appeal to children or teenagers who might appreciate having their own space away from parents.
However, you’d need to plan your storage carefully when using all six berths. Items normally stored in the rear garage would need alternative homes, which could impact the overall living experience.
The Flash C646’s Kitchen Layout
The kitchen features a three-burner hob and oven grill, providing proper cooking capability for larger groups. When you’re catering for six people, having that third burner makes a significant difference to meal preparation efficiency. The 240V sockets in the kitchen area allow for small appliances, though you’d need to monitor your power consumption carefully.
Storage above the kitchen and in adjacent cupboards should accommodate the increased food supplies needed for larger groups, though you’d still need to plan meals carefully to avoid overwhelming the available space. The kitchen’s position in the layout allows the cook to remain part of the social area rather than being isolated.
Bathroom Space in the Chausson
The bathroom features slide-around doors, a space-saving solution that works well in motorhomes of this size. You’d find a cassette toilet, shower unit, and sink, along with a mirror for daily routines. The design appears practical rather than luxurious, which suits the family-focused nature of this motorhome.
With six people potentially using the bathroom, the 105-litre fresh water tank and 100-litre waste tank might require more frequent attention than in smaller motorhomes. You’d need to factor in additional stops for water and waste disposal during longer tours.
Power and Water Systems
The Webasto heating system should keep the interior comfortable during cooler weather, important when you’re touring with a larger group who might have different temperature preferences. The electric hook-up point allows you to connect to campsite power, essential when running the larger fridge and charging multiple devices.
The electrical systems appear well-organised, with fuse and switch boards located in the nearside locker for easy access. The LPG gas locker on the offside follows standard safety practices, keeping gas storage separate from electrical components.
Water storage at 105 litres fresh and 100 litres waste represents a reasonable capacity, though with six people aboard, you’d likely find yourself seeking refill points more frequently than smaller groups might expect.
Other Motorhomes Worth Considering
The Chausson Flash C656 7-Berth Overcab Review offers a different layout approach if you’re considering Chausson’s Flash range, potentially with alternative sleeping arrangements that might better suit your specific needs.
For a more compact option within the Flash family, the Chausson Flash 510 4-Berth Drop-Down Review provides Chausson build quality in a smaller package, ideal if you don’t need six-berth capacity.
The Chausson Flash 624 Fixed Bed Garage Review represents another layout variation that might offer different compromises between sleeping capacity and living space.
Final Thoughts
The 2019 Chausson Flash C646 tackles the challenging brief of six-berth family touring with intelligence and practicality. The convertible garage system provides genuine flexibility, allowing you to prioritise storage or sleeping capacity as circumstances require. Build quality appears solid, and the Ford Transit base provides reliable, familiar mechanicals.
However, this motorhome demands careful consideration of your actual needs. The 660-kilogram payload requires disciplined packing, and the systems will need more frequent attention with six people aboard. You’d need to be realistic about whether you truly need six berths or whether a smaller, less compromised layout might serve you better.
For families who genuinely need the sleeping capacity and appreciate the storage flexibility, the Flash C646 offers a well-thought-out solution. Just ensure you understand the practical implications of touring with six people before committing to this level of accommodation.
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