BYD FangChengBao Leopard 5 Review: 5mm Aluminum-Magnesium Chassis & Engine Guard Plate

Product: BYD FangChengBao Leopard 5 Chassis Guard Plate, Engine Lower Guard Plate, 5mm Aluminum Magnesium Alloy

Price: $124.37

This review covers the BYD FangChengBao Leopard 5 chassis/engine guard plate — a purpose-built underbody protection accessory for the BYD FangChengBao Leopard 5 (and compatible models). Manufactured for the aftermarket (and OEM-style replacement/upgrade users), this product falls into the vehicle skid-plate / underbody protection category. Its intended use is to protect the engine sump, oil pan, transmission bell housing and other critical components from road debris, impacts, stones, potholes, and light off-road obstacles while keeping added weight low.

Visually the guard is a low-profile, flat-to-slightly-contoured plate with a utilitarian, mechanical aesthetic. The advertised construction is a 5mm aluminum-magnesium alloy — a lightweight metal blend commonly used to balance strength, stiffness and corrosion resistance. The natural metallic finish gives it a clean, factory-fit look beneath the vehicle without the bulk of heavier steel skid plates.

Design elements typical of this product class that are present or likely include formed edges for stiffness, pre-cut or pre-drilled mounting points for bolt-on installation, and openings or cutouts to allow routine service access (oil drain, inspection, or coolant lines) without removing the entire plate. The plate’s relatively thin profile maintains ground clearance while providing a continuous protective surface under the engine bay.

Based on hands-on use scenarios and how 5mm aluminum-magnesium plates perform in general, here are the observed and expected behaviors across common driving situations:

City & Daily Driving

The plate provides a solid barrier against kicked-up debris, road salt, and small impacts from curbs or speed bumps. Drivers report a reassuring reduction in underbody exposure to road hazards. Because the plate is relatively thin and lightweight, there’s minimal effect on ride height and fuel economy compared with heavier steel plates.

Highway & Long-distance

At sustained speeds the plate remains stable and quiet when properly torqued to OEM or recommended fastener specs. The continuous coverage helps smooth airflow under the car, which can slightly reduce wind noise versus exposed suspension components (though measurable aerodynamic effects are minor).

Potholes, Speed Bumps & Light Off-road

For occasional off-road use or frequent travel on rough municipal roads, a 5mm aluminum-magnesium plate will deflect and spread impact energy across its surface. It performs well against stones, small-to-medium potholes and drop-offs typical of urban/off-road transition zones. However, compared with thicker steel plates, a 5mm aluminum-magnesium plate can dent or bend under severe heavy-impact loads (e.g., large rocks or hard, sharp impacts). For moderate off-road protection it is a strong, lightweight choice; for heavy rock-crawling a thicker steel skid would be more damage-resistant.

Winter & Corrosive Environments

The aluminum-magnesium alloy resists rusting better than raw steel, which is advantageous in salted or wet climates. Ensure any bolt heads or fasteners are similarly corrosion-resistant (stainless or coated) to maintain long-term durability.

Installation & Maintenance

Installation is typically straightforward for mechanically-inclined owners: the plate usually mounts to existing factory points using bolts and may take roughly 30–90 minutes depending on access and whether fasteners are supplied. Using a lift or secure jack stands is recommended. Periodic checks of fastener torque and inspection for dents or loose hardware are advisable; minor dents can be hammered out in some cases, but severe deformation will reduce protection and may require replacement.

The BYD FangChengBao Leopard 5 5mm aluminum-magnesium chassis/engine guard plate represents a sensible balance of protection, weight savings and corrosion resistance at a competitive price. For Leopard 5 owners seeking improved underbody protection for city driving, highway use and light off-road excursions, this plate is a practical upgrade that preserves ground clearance and vehicle dynamics better than heavier steel alternatives.

However, buyers who frequently encounter heavy rock fields, aggressive off-road trails or who need maximum impact resistance should consider a thicker steel skid plate. Also verify the product’s fitment, mounting hardware inclusion and access features before purchase. Overall, this guard plate is a strong value for drivers who want reliable everyday protection without a large weight penalty.

Recommendation: Good choice for daily drivers and light off-road users who own a BYD FangChengBao Leopard 5 and want affordable, corrosion-resistant underbody protection. Those with heavy-duty off-road needs should evaluate heavier-duty alternatives.