Maremlyn Spare Tire Storage Box - How we solve the pain points of millions of car owners with a single product.

If you bought a new‑energy vehicle in the past couple of years, you have likely encountered this scenario: open the trunk, lift up the floor panel, and you will find nothing underneath — no spare tire.

We have conducted extensive market research, and our findings are clear.
 

Over several months, through questionnaires, car‑owner interviews, forum data analysis, and feedback from overseas distributors covering multiple domestic and international markets, we have arrived at a highly consistent conclusion:The vast majority of new‑energy‑vehicle owners still want a spare tire.
 

This demand is not irrational. Tire‑repair sealant and air pumps cannot fix sidewall blowouts. Roadside assistance is largely ineffective in remote areas, late‑night hours, or areas with poor cellular signal. For drivers who take long‑distance trips, go camping, or simply refuse to leave their safety in the hands of third‑party services, a physical spare tire represents a safety baseline.
 

So owners go ahead and buy a spare tire on their own. Then comes the second problem:Where to store the spare tire?
 

Simply tossing it into the trunk means it will roll around, bang against other items, and occupy at least one‑third of the cargo space. Add a jack, lug wrenches, and a warning triangle, and the trunk turns into a complete clutter zone. Even grocery‑shopping bags end up competing for space with the spare tire.
 

We identified this widespread predicament, yet saw no mature products on the market to address it. Therefore, we decided to develop the solution ourselves.

 
Vehicle‑Specific Spare‑Tire Storage Box: Addressing the Problem at Its Source

After measuring and developing solutions for dozens of mainstream new‑energy models, we have launched a full line of vehicle‑specific spare‑tire storage boxes.

Its key differentiators are as follows:

1. True Vehicle‑Specific Design, Not "One‑Size‑Fits‑All" Universal Products

Each storage box is 3D‑scanned and modelled based on the under‑trunk cavity of the target vehicle, with millimetre‑level tolerance. It fits precisely into the factory‑reserved spare‑tire compartment — the empty space left by vehicle manufacturers.

Once installed, the unit stays firmly in place with zero rattling or shifting, fitting just like an OEM factory part.

2. Dual‑Layer Compartmentalised Storage: All‑in‑One Solution

Recessed grooves on the upper layer secure the spare tire via moulded‑in tyre positioning, preventing displacement even during hard braking. Separate storage slots in the lower section and side edges hold the jack, lug wrenches, warning triangle, tyre‑repair tools and other emergency gear, with dedicated slots for each tool.

No more clattering tools rolling loose in the trunk. During an emergency tyre change, you no longer need to rummage through clutter to locate your jack.

3. Preserve Every Millimetre of Trunk Space

Since the storage box sits inside the cavity beneath the trunk floor, it leaves the upper trunk surface completely untouched. Luggage, strollers, cargo and samples can all be loaded exactly as before, with zero loss of cargo capacity.

This is the core design philosophy: your spare tire is always ready for use, while your trunk stays neat and uncompromised.

4. Robust Injection‑Moulded PP Material

Manufactured from one‑piece injection‑moulded PP (polypropylene):

• High structural strength; resistant to permanent deformation under long‑term heavy loads
• Impact‑resistant and crack‑resistant
• Waterproof and dirt‑repellent; easy to rinse clean
• Low‑odour, eco‑friendly and non‑toxic
• Tolerant of extreme temperatures: ‑30 °C to +80 °C; maintains shape in harsh climates

5. Fast Installation: Secure with Just a Few Screws

Set the unit into the trunk cavity, then fasten it using a few screws in the factory‑pre‑drilled mounting points. No drilling, no cutting, and no special tools required. Installation takes less than 5 minutes with a standard screwdriver.
 

How Large Is the Market Opportunity? Hard Data Speaks for Itself

Global new‑energy‑vehicle sales exceeded 23 million units in 2025 and keep growing rapidly. By 2026, more than 40 million new‑energy vehicles will be in service worldwide. The vast majority of these vehicles roll off the production line without a spare tyre.

What does this mean? It represents a huge and continuously expanding aftermarket gap.

For overseas distributors, auto‑parts retailers, cross‑border e‑commerce sellers and automotive brands, spare‑tire storage boxes represent:

• A blue‑ocean product category with strong consumer demand and low competition
• Good repeat‑purchase potential (different models require different box variants; customers repurchase when upgrading vehicles)
• Natural upsell opportunities (spare tire + storage box + tool kit sold as a bundle)
• An easy‑to‑communicate product value proposition for end‑users.
    

The Maremlyn Brand & Supported Vehicle Models

Maremlyn is our dedicated brand for this product line. Rather than chasing every single car model on the market, we focus on high‑demand vehicles with the most obvious storage‑pain‑point profiles. Every supported vehicle undergoes a complete R&D workflow: real‑vehicle 3D scanning → CAD modelling → mould development → real‑car fitting tests → batch‑lot validation.

Contact us for our list of developed vehicle models. We already cover multiple mainstream new‑energy vehicles and keep expanding our portfolio in step with newly launched models.
 

Our Commitment

Our original motivation for developing spare‑tire storage boxes is straightforward: market research confirmed genuine user demand, so we built a product to meet it.

Every Maremlyn‑shipped storage box undergoes:

• Real‑vehicle 3D scanning and CAD‑model validation for each target vehicle
• Full‑batch pre‑shipment inspection
• Custom‑packaging and white‑labelling options for wholesale clients
• Ongoing model expansion: new‑vehicle launches trigger parallel product‑development work.

This is not a “good‑enough” generic storage bin. It is a precision‑engineered product tailor‑made for specific vehicle models.
 

Let’s Cooperate

If you are searching for competitive new‑energy‑vehicle accessory products, whether you are an overseas distributor, auto‑parts retailer, cross‑border e‑commerce seller or automotive‑brand procurement partner, please get in touch.

Do you have BYD‑related orders? Spot goods are available for immediate shipment. Are you expanding markets centred on other OEM brands? We can also custom‑develop new vehicle variants to match your channel requirements.

Product specification sheets, sample orders and wholesale quotations are available upon request.