Knaus Sun I Motorhome for Sale
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Answer in brief
What should buyers know about the Knaus Sun I?
RoamWorthy's maintained guide places the Knaus Sun I at £85,000–£140,000. There is not yet enough exact live listing evidence to present that as a current market range.
At range level, the Knaus Sun I sleeps up to 5, has a guide gross weight of 4,500kg, is approximately 7.6m long. Specifications can vary by model year and derivative, so verify the exact vehicle before purchase.
- Market evidence
- Maintained RoamWorthy model guide
- Prices checked
- 4 September 2026
- Specification scope
- Range-level guide; exact derivative varies
See the complete price evidence or read how RoamWorthy verifies vehicle information.
At a glance
- The Knaus Sun I sleeps up to 5 across the recorded range, making it suitable for family touring.
- Guide gross-weight range: 4,500kg. Verify the exact plated vehicle and licence entitlement.
- Guide length: 7.60m.
- No exact current dealer listings are available on RoamWorthy at the latest evidence check.
Quick verdict for Knaus Sun I
Quick Verdict
Road Legal Vitals UK
C1 Licence Required
Gross weight: 4,500kg.
5
Sleeping Berths
Seatbelt data not available. Check the exact dealer listing.
Price & Engine
Guide price range
£85,000–£140,000
Typical advertised prices for a Knaus Sun I; year, mileage, condition and specification affect value.
Cab & Chassis
Driving specs for the Knaus Sun I
Driving Experience
The Knaus Sun I offers a comfortable driving experience suitable for both motorway cruising and navigating narrower roads.
About the Knaus Sun I
The Knaus Sun I motorhome range represents the pinnacle of luxury and innovation, designed for discerning travellers who demand nothing but the best. As a flagship model from the esteemed German manufacturer Knaus, the Sun I offers an unparalleled touring experience, combining sophisticated design with robust engineering. With its integrated bodywork, this motorhome boasts a sleek, aerodynamic profile that not only looks stunning on the road but also contributes to improved fuel efficiency and a quieter ride. Inside, every detail is meticulously crafted to create a lavish and comfortable living space, perfect for extended adventures across the UK and beyond.
Step into a world of elegance with the Knaus Sun I. The interior is characterised by high-quality materials, contemporary finishes, and intelligent use of space, ensuring both practicality and aesthetic appeal. From the spacious lounge area, ideal for entertaining or relaxing, to the well-appointed kitchen and luxurious sleeping quarters, the Sun I provides all the comforts of home. Advanced insulation, efficient heating systems, and ample storage solutions make it suitable for all seasons, allowing you to explore diverse landscapes without compromise.
Whether you're planning a romantic getaway or a family expedition, the Knaus Sun I offers flexible layouts to suit various needs, typically accommodating multiple berths without sacrificing living space. Its powerful chassis provides a smooth and stable drive, while a host of driver-assistance features ensure safety and peace of mind on every journey. This motorhome is not just a vehicle; it's a statement of style and a commitment to unforgettable travel experiences. Discover your next grand adventure with a Knaus Sun I on RoamWorthy.
Check if you can drive this on your licence with our Motorhome Weight Checker.
Knaus Sun I Video Reviews
Expert reviews and walkthroughs of the Knaus Sun I
More videosInterior Layout & Sleeping Configuration
Explore the Knaus Sun I floorplan and discover how the space works.
Representative Rear Island Bed layout illustration. Exact floorplan can vary by derivative and year.
Layout features
Sleeping capacity
About the layout
Features a fixed bed plus additional sleeping space for 5 people. The permanent bed avoids nightly conversion.
Live Knaus Sun I Inventory
1 current listing
2018 Knaus Sun I
Thompson Leisure
Weights
Dimensions
Accommodation
How we assess the Knaus Sun I
- Compiled from dealer feeds and manufacturer data. Specifications, prices, and stock sourced from verified UK dealers and brand records
- Specs vary by year, trim, and options. Weights, dimensions, berths, and equipment can differ between model years and optional packs
- Prices based on recent UK listings where available. Price ranges reflect current and recent dealer listings. Actual prices may vary by condition, year, and specification
- Always confirm before buying. Verify exact specifications, condition, and equipment with the seller or manufacturer
Practical ownership tips
Licence requirements
At 4,500kg GVW, the Knaus Sun I exceeds 3,500kg and requires a C1 licence (or a pre-January 1997 car licence). Confirm the exact GVW with the seller before purchase.
Payload capacity
The Knaus Sun I has approximately 800kg of user payload for passengers, water, gas, and personal gear. Check the actual plated weight against the unladen weight for the specific vehicle you are viewing.
Before you buy
Request a habitation check for any used unit. Check the base vehicle service history, MOT record, and whether the V5C matches the seller. For conversions, confirm the vehicle is correctly registered with DVLA.
Frequently Asked Questions
Motorhome Weight & Licence Check
Check whether you can legally drive this motorhome and understand its weight limits.
- Check licence requirements
- Understand weight limits
- Drive legally
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Explore Knaus
Is the Knaus Sun I the right luxury A-Class for you?
The Knaus Sun I is a premium A-Class motorhome designed for 4 to 5 people, offering a high 800kg payload and a 4500kg MTPLM. Built on a 7.6m chassis, it features luxury layouts such as Island Beds and L-shaped lounges. With prices ranging from 85000 to 140000, it serves as a flagship model for those requiring significant storage and all-season insulation.
- Integrated A-Class body with a panoramic windscreen for enhanced road visibility.
- Flexible sleeping arrangements including Island Bed and Fixed Single Bed options.
- Substantial 800kg payload capacity for heavy equipment and supplies.
- All-season capability supported by advanced heating and insulation systems.
- Spacious L-shaped lounge area complemented by swivelling cab seats.
Worth knowing: The 4500kg MTPLM requires drivers to hold a C1 category licence in the UK. A width of 2.34m and length of 7.6m may present challenges on narrow rural routes.
Buying a Knaus Sun I: What you need to know
Who it suits
- • Long-distance tourers who require a high 800kg payload for extended trips.
- • Families or groups of up to 5 people seeking a spacious L-shaped lounge and drop-down cab bed.
- • Winter enthusiasts who benefit from the integrated design and advanced insulation.
Reasons to consider it
- • Exceptional build quality from a flagship German manufacturer.
- • High-capacity storage solutions including a large garage for outdoor equipment.
- • Superior visibility provided by the integrated A-Class panoramic windscreen.
What to check
- • Verify the specific bed configuration as layouts vary between Island and Fixed Single options.
- • Confirm the exact berth count for your chosen unit, as models range from 4 to 5 berths.
- • Check the service history of the advanced heating system to ensure all-season readiness.
- • Inspect the large rear garage for any signs of wear from previous outdoor gear storage.
Worth knowing: The 4500kg weight exceeds the standard 3500kg car licence limit. The 7.6m length requires careful consideration for standard parking and storage spaces.
Compare the Knaus Sun I with similar models
| Model | Berths | Maximum weight | Length | Typical price |
|---|---|---|---|---|
| Knaus Sun I | 5 | 4500 kg | 7.60 m | £85,000 to £140,000 |
| Hymer B-MC I680 BLACKLINE | 5 | 4430 kg | 7.39 m | £110,000 to £155,000 |
| Adria Sonic | 5 | 4400 kg | 7.52 m | £75,000 to £135,000 |
The Knaus Sun I sits at the higher end of the luxury A-Class market with a price range reaching 140000. While alternatives like the Adria Sonic or Bürstner Lyseo I 727 G offer similar 5 berth capacities at lower starting prices, the Knaus distinguishes itself with a 4500kg MTPLM and a generous 800kg payload. It is longer than the Hymer B-MC I680 at 7.6m, trading a larger footprint for internal volume and storage capacity.
Worth knowing: Specifications and prices can vary by model year, trim and optional equipment.
Ownership and maintenance tips for the Sun I
- Utilise the 800kg payload to carry seasonal gear without compromising safety.
- Regularly clean the panoramic windscreen to maintain the visibility benefits of the A-Class design.
- Ensure the C1 licence remains valid for all intended drivers due to the 4500kg weight.
Common mistakes to avoid
- • Underestimating the 2.9m height when navigating under low bridges or fuel station canopies.
- • Exceeding the rear axle limit when fully utilising the large garage space.
Worth knowing: Always verify the specific MTPLM on the vehicle plate before transit. Payload figures can be affected by the installation of optional premium appliances.
Alternatives to the Knaus Sun I
The Hymer B-MC I680 BLACKLINE offers a similar 5 berth capacity but with a slightly shorter 7.39m length for those seeking a more compact A-class footprint.
Adria SonicThe Adria Sonic provides a comparable 5 berth layout and 4400kg MTPLM at a lower starting price point of 75000.
Bürstner Lyseo I 727 GFor buyers prioritising a lower MTPLM, the Bürstner Lyseo I 727 G offers a 4250kg weight while maintaining a 5 berth configuration.
Data and source notes
- This page uses the maintained RoamWorthy record for the Knaus Sun I.
- 8 model images are recorded for this page and served from RoamWorthy-hosted media.
Specifications can differ by production year, trim and optional equipment.
Dealer listings are used as current marketplace evidence, not as a substitute for the exact vehicle documentation.
Worth knowing: Confirm weights, dimensions and fitted equipment for the exact vehicle before purchase or towing.
Sources and review status for the Knaus Sun I
This page is supported by 1 recorded source group.
- RoamWorthy maintained model catalogueeditorial database
Specifications can vary by model year, trim and optional equipment.
Read how RoamWorthy verifies model information →No Knaus Sun I motorhomes available
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