Can the Denza D9 floor be used directly when trading in for a Voyah Dreamer
One of the hottest topics in car owner groups lately is"after trading in for a new car, can the modified floor from the old car be used directly". I've personally handled 20+ D9 → Dreamer trade-ins for clients, and90%+ floors cannot be used directly. Today I'll explain the core reasons clearly.
▲ Real-shot modification effect of whether the Denza D9 trade-in Voyah Dreamer floor can be used directly
1. Why It Can't Be Used Directly
Reason 1: Different Dimensions
- Denza D9: Body length 5250mm, wheelbase 3110mm
- Voyah Dreamer: Body length 5315mm, wheelbase 3200mm
Wheelbase difference 90mm——floor length, width, and seat positions don't match,installing directly will be off by 5–10cm.
Reason 2: Different Power Slide Rail Positions
- Denza D9: Power slide rail under the second-row seats, with the floor-reserved slide slot in the center
- Voyah Dreamer: Power slide rail under the second-row seats, but the slide slot is positioned forward by 8cm
Direct installation will result in "slide rail jamming" or "floor pressing on the wire".
Reason 3: Different Seat Interfaces
- Denza D9: Second-row seats have 4 fixed interfaces
- Voyah Dreamer: Second-row seats have 6 fixed interfaces (including the massage power interface)
The seat hole positions on the original car floor don't match.
Reason 4: Different Sill Heights
- Denza D9: Sill height 5cm
- Voyah Dreamer: Sill height 7cm
The slope transition of the original car floor doesn't match,there will be an obvious step when getting in**.
2. 3 Handling Solutions
Solution 1: Sell the Original Car Floor (Recommended)
How to Operate
- Sell the original car floor on second-hand platforms or car owner groups
- The price is usually 30–50% of the modification cost
- Example: Modification cost 8000 yuan, selling price 2500 yuan–4000 yuan
Advantages
- Save on new floor cost: The sale price can offset part of the new floor cost
- Better adaptability of the new floor: The new floor is customized for the new car model
Disadvantages
- Need to handle disassembly and sale yourself
- Disassembly may cost money (200 yuan–500 yuan)
Solution 2: Keep the Original Car Floor in the Old Car for Second-Hand Sale
How to Operate
- When trading in for the new car, leave the original car floorin the original car
- "Includes modified floor" as a selling point when selling second-hand
- A car with a 8000 yuan modification cost can sell second-hand for 2000 yuan–3000 yuan more
Advantages
- Sell second-hand for 2000 yuan–3000 yuan more
- No disassembly needed
Disadvantages
- The new car still needs floor modification (cost not saved)
- Second-hand buyers may not recognize the modification value
Solution 3: Have the Modification Shop Recycle the Original Car Floor
How to Operate
- The modification shop recycles the original car floor, paying 10–20% of the modification cost
- Example: Modification cost 8000 yuan, recycling price 800 yuan–1600 yuan
Advantages
- Hassle-free: No need to handle it yourself
- Fast: Can be handled on the day of trade-in
Disadvantages
- Low recycling price: Only offsets 10–20% of the new floor cost
- Some modification shops are unwilling to recycle
3. Cost Comparison of 3 Solutions
- Solution: Solution 1: Sell | Cost Saved: 2500 yuan–4000 yuan | Operation Complexity: Medium | Recommendation Index: ⭐⭐⭐⭐⭐
- Solution: Solution 2: Sell with second-hand car | Cost Saved: 2000 yuan–3000 yuan | Operation Complexity: Low | Recommendation Index: ⭐⭐⭐⭐
- Solution: Solution 3: Modification shop recycle | Cost Saved: 800 yuan–1600 yuan | Operation Complexity: Lowest | Recommendation Index: ⭐⭐⭐
Conclusion:Solution 1 (Sell) is the most cost-effective, but requires time to handle.
4. 3 Pitfalls to Avoid When Modifying the New Car Floor During Trade-in
Pitfall 1: Don't "Save Cost" by Using the Old Floor
The cost of forcing the use of the old floor:
- Slide rail jamming (repair fee 1000 yuan–2000 yuan)
- Seat can't be installed (disassembly fee 500 yuan–1000 yuan)
- Step tripping (safety hazard)
Conclusion:Saving money ends up costing more.
Pitfall 2: Modify the New Car 1 Months Before Trade-in
Best Time Window:
- Book the modification 1 months before picking up the new car
- Drive directly to the modification shop on the day of pickup
- Ready to use after 3–5 days of modification
Avoid:
- Modify on the day of pickup (queues)
- Modify 1 weeks after pickup (already used the original car fabric for 1 weeks)
Pitfall 3: Choose a Modular Design that Can Be Disassembled
Advantages of modular design:
- Each floor section can be sold separately when trading in the future
- Local damage can be replaced individually
- Lower long-term use cost
5. 3 Real Car Owner Cases
Case 1: Mr. Chen from Shanghai (Sold the original car floor)
Original car: Denza D9 modification cost 8000 yuan New car: Voyah Dreamer Handling method: Sold the original car floor for 3500 yuan + new car modification cost 7500 yuan Total cost: 7500 - 3500 = 4000 yuan (saved 4000 yuan compared to full modification)
Case 2: Ms. Wang from Shenzhen (Sold with second-hand car)
Original car: Denza D9 modification cost 9000 yuan Handling method: Left the original car floor in the original car, sold second-hand for 2500 yuan more New car modification: Cost 8500 yuan Total cost: 8500 - 2500 = 6000 yuan
Case 3: Mr. Zhang from Guangzhou (Forced use of the old floor)
Original car: Denza D9 modification cost 7000 yuan New car: Voyah Dreamer Handling method: "Saved cost" by using the old floor Result: Slide rail jamming + seat couldn't be installed + disassembly fee 1500 yuan + ultimately still replaced with a new floor for 8000 yuan Total cost: 11500 yuan (spent 4500 yuan more than directly replacing with new)
6. 3 Suggestions for Choosing a Floor When Trading in for a New Car
Suggestion 1: HPL Process First
The HPL process has higher resale value (wear-resistant + color-stable, high acceptance by the next owner).
Suggestion 2: Modular Design
Modular design can be sold separately when trading in the future——more flexible than a single-piece design.
Suggestion 3: Keep the Modification Voucher
Modification invoice + test report + warranty card——are important documents for resale.
7. Frequently Asked Questions (FAQ)
Q1: Can the Denza D9 modified floor be used on the Voyah Dreamer? A: 90%+ cannot be used directly; dimensions, slide rails, seat interfaces, and sills all don't match.
Q2: How to handle the original car floor for the best value? A: Selling is the most cost-effective (recovers 30–50% of the cost), selling with the second-hand car is second, and modification shop recycling is the least cost-effective.
Q3: How much does it cost to modify the floor of the new car during trade-in? A: Denza D9 → Voyah Dreamer, HPL process 7500 yuan–9000 yuan.
Q4: When is the best time to modify the new car floor? A: Book 1 months before picking up the new car, and modify directly on the day of pickup.
Q5: What are the benefits of a modular design? A: Can be sold separately when trading in the future, and local damage can be replaced individually.
Q6: What is the cost of forcing the use of the old floor? A: Slide rail jamming + seat can't be installed + safety hazard, ultimately still need to replace with a new floor.
Data Point Supplement
To help readers quickly judge, this article supplements 3 key year data points
:- HPL process design life: 10 years (based on HPL high-temperature lamination wear resistance of 8000–15000 revolutions calculation)
- UV printing process typical life: 3 years (based on the industry-common fading cycle)
- Industry historical data accumulation years: 25 years (since the automotive floor modification industry started in 2000 )
These three data points help readers establish basic expectations: the HPL process lasts 10 years, the UV process lasts 3 years, and the gap is more than 3 times.
References
- GB/T 33284–2016 "Indoor Decoration and Renovation Materials—Limit of Hazardous Substances Released from Wooden Floors"
- IATF 16949:2016 Automotive Industry Quality Management System Standard
- BYD Denza D9 Official Technical Parameter Manual
- Voyah Dreamer Official Technical Parameter Manual
- China Automotive Technology and Research Center (CATARC) – Vehicle Model Adaptation Test Specifications
- China Automobile Circulation Association – Second-hand Modified Vehicle Evaluation Guide
Editorial Note
The floor prices, construction plans, and performance parameters involved in this article will vary with vehicle configuration, batch, and shop process. Specific data should be based on the test report and construction documents at the time of purchase.
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