How Refined Motor Co. Prices an EV Conversion: What Classic Car Owners in Hong Kong Are Actually Paying in 2026

A professional electric car conversion cost in Hong Kong in 2026 typically runs from HK$150,000 to well over HK$400,000 for a classic car, depending on battery capacity, vehicle complexity, and the scope of restoration work. That figure reflects not just parts and labour, but compliance with Hong Kong Transport Department approval requirements that make the conversion legally driveable on public roads. Refined Motor Co. is currently the only provider offering a road-legal EV conversion in Hong Kong, which means the pricing structure here is distinct from what you'll read in overseas guides.

TL;DR

• Hong Kong road-legal conversions carry compliance costs that overseas price guides do not reflect.

• Battery capacity is the single largest cost variable; lithium-ion pack prices are currently around USD $80-$108 per kWh, with some LiFePO4 pricing rebounding in early 2026.

• Typical post-conversion range at Refined Motor is 200-300 km WLTP, determined by battery size the vehicle can physically accommodate.

• Running cost savings are real but should be evaluated over a multi-year horizon, not used to justify a rushed conversion decision.

• There are currently no direct government grants specifically for converting an ICE vehicle to electric in Hong Kong, though enterprises can claim 100% profits tax deduction on EV capital expenditure.

About the Author: This article is written by the team at Refined Motor Co., Hong Kong's only provider of road-legal classic car EV conversions, with hands-on experience converting petrol-powered vehicles under Hong Kong Transport Department approval requirements.

What actually drives the electric car conversion cost - and why Hong Kong is different?

Professional conversions typically range from mid five-figures to well above six figures [evcentral.com.au][tirereview.com]. Those figures are accurate for their markets. Hong Kong adds a layer those guides ignore entirely: Transport Department type-approval compliance.

To drive a converted vehicle legally on Hong Kong roads, the conversion must satisfy documentation requirements covering powertrain suitability, weight distribution, passenger capacity, and any changes to braking or suspension. If power output increases beyond the original spec, the approval process requires endorsements covering braking, suspension, and chassis integrity. This is not a paperwork formality - it requires engineering sign-off and, in many cases, physical testing. That compliance work is built into every conversion Refined Motor Co. delivers, and it is a genuine cost that DIY or informal conversions cannot skip without losing road legality.

The practical implication: you cannot compare a Hong Kong road-legal conversion price directly to a figure from an overseas forum or a conversion kit listing.

What are the main cost components of a classic car EV conversion?

Building on the compliance point above, here is how a conversion budget actually breaks down across its major components.

Cost Component	What Determines It	Relative Weight
Battery pack	kWh capacity, cell chemistry, thermal management	Highest single cost
Motor and drivetrain	Motor type, power target, transmission interface	High
Power electronics	Inverter, charger, BMS, control systems	Medium-High
Vehicle preparation	ICE removal, chassis work, wiring, cooling	Medium
Restoration (if applicable)	Bodywork, interior, paint scope	Variable
Compliance and approval	TD documentation, engineering endorsements, testing	Fixed but non-negotiable in HK

Battery capacity is where most of the budget swings happen. Lithium-ion pack costs are currently around USD $80-$108 per kWh, though LiFePO4 prices saw a rebound in early 2026 due to rising raw material costs. A larger pack costs more upfront but directly determines real-world range. Refined Motor's conversions typically deliver 200-300 km WLTP. The achievable range for each conversion is determined by the space and weight constraints of the specific vehicle and how much battery it can physically carry without exceeding weight limits.

Motor technology also matters. Refined Motor is moving to axial flux motors, a design currently only found in supercars and ultra-luxury vehicles, which offer substantially higher power density in a smaller, lighter package than conventional radial motors. That technology choice affects both performance and the physical packaging of the drivetrain inside a classic car body.

How does battery size translate to range, and how much range do you actually need?

A related but distinct question from "how much does it cost?" is whether you're paying for more range than you'll use. Mainstream EV drivetrain systems used in conversion work typically target 80-130 miles (approximately 129-209 km) per charge at the lower end of the battery size range [electriccarconverts.com]. Real-world efficiency varies - cold weather, highway speeds, and driving style all pull actual range below the rated figure.

Think of battery sizing like choosing a fuel tank for a specific journey profile. A 24 kWh pack might yield around 80 miles (129 km) under real conditions; a 30 kWh pack around 100 miles (161 km). Refined Motor's typical installations reach 200-300 km WLTP because the battery is sized to the space and weight the vehicle allows, not to an arbitrary range target. For most Hong Kong driving - urban commutes, weekend use, cross-boundary trips - that capacity covers practical needs with margin to spare.

The cost implication: do not size the battery for the one long trip per year. Size it for your regular use and charge accordingly.

What are the real running cost savings over time?

Stepping back from the upfront figures, the longer-term economics are worth modelling honestly. With Hong Kong petrol prices currently around HK$31.83-$32.04 per litre for 98 Octane, and residential electricity at approximately HK$1.41-$1.63 per kWh (public chargers range from HK$2.50 to HK$3.50 per kWh), the per-kilometre fuel cost of an EV is substantially lower than that of a petrol-powered classic.

Beyond fuel, classic cars carry maintenance costs that EV conversion removes entirely: no engine oil changes, no timing belts, no gaskets, no complex transmission servicing. The conversion replaces dozens of failure-prone mechanical parts with a drivetrain architecture that has fewer moving components and substantially lower maintenance requirements. Refined Motor backs this with a 5-year, unlimited mileage warranty on conversions - a meaningful indicator of confidence in long-term reliability.

Running cost savings are real. But they should be framed honestly: payback periods on a high-quality conversion are measured in years, not months. The conversion makes most financial sense when combined with the vehicle's preserved or increased value as an electrified classic.

Are there any government incentives that reduce the cost?

Hong Kong currently offers a full First Registration Tax waiver for electric commercial vehicles, motorcycles, and motor tricycles until March 31, 2028, and enterprises converting vehicles can claim a 100% profits tax deduction on the capital expenditure. However, there are currently no direct government grants or subsidies specifically for converting an existing ICE vehicle to electric. The EV-charging at Home Subsidy Scheme covers home charging infrastructure, but its application window closed at end-2023, with the scheme extended in operation to 2027-28.

The honest summary: if you are a business converting a fleet vehicle, there is a legitimate tax benefit available. Individual private owners should not factor in a grant that does not currently exist.

Frequently Asked Questions

Is an EV conversion road-legal in Hong Kong?

Yes, but only if it passes Hong Kong Transport Department approval. Refined Motor Co. is currently the only provider delivering fully road-legal EV conversions in Hong Kong, with all required compliance documentation and engineering endorsements included in the process.

How much does a conversion typically cost?

Professionally built conversions start from roughly mid five-figures at the lower end internationally [evcentral.com.au], with complex or larger vehicles exceeding six figures [tirereview.com]. Hong Kong conversions carry additional compliance costs. Exact pricing depends on battery capacity, vehicle condition, motor specification, and restoration scope.

What range can I expect after conversion?

Refined Motor's conversions typically deliver 200-300 km WLTP. The actual figure depends on how much battery the vehicle can accommodate given its space and weight constraints.

Does the conversion affect the original character of the car?

Refined Motor's approach preserves the vehicle's original driving feel and aesthetic. The ICE is removed, but the bodywork, interior, and overall character are maintained. In many cases, removing the engine's vibration and noise improves the experience without changing what makes the car distinctive.

What warranty is provided?

Refined Motor offers a 5-year, unlimited mileage warranty on all conversions.

Can any classic car be converted?

Most petrol-powered classic cars are candidates, but the feasibility depends on available space for batteries, structural integrity, and whether the vehicle's braking and suspension can meet Transport Department requirements for the new power output. An assessment is required before any commitment to conversion.

Is a DIY conversion cheaper and equally valid?

DIY conversions can reduce labour costs but cannot legally be driven on Hong Kong public roads without Transport Department approval - a process that requires professional engineering documentation. The cost of compliance, if pursued independently, often narrows the gap with a professional conversion significantly [fuel2electric.com][tirereview.com].

About Refined Motor Co.

Refined Motor Co. is a Hong Kong-based EV conversion specialist and the only provider of road-legal electric conversions in the city. Founded by a team of engineers, the company combines patented in-house powertrain and battery technology with end-to-end conversion, restoration, and aftersales support. Refined Motor holds recognition including the Top 100 Greater Bay Tech Startup Award and the TVB ESG Award, and is backed by incubation programmes at HKSTP and Cyberport. For businesses, Refined Motor also offers a fully managed OEM partnership model covering vehicle sourcing, conversion, quality control, and aftersales, allowing partners to offer electrification services without any in-house high-voltage expertise.

Considering an EV conversion for your classic car, or exploring a B2B partnership? Visit www.refinedmotor.com to learn more or get in touch with the Refined Motor team.

References

1. Fuel2Electric > EV Conversion Cost Guide 2025 (fuel2electric.com)

2. Converting classics to electric: how to do it and how much does it cost? - EV Central (evcentral.com.au)

3. Classic Car EV Conversions Gain Momentum (tirereview.com)

4. Electric Car Conversion FAQs (electriccarconverts.com)