Learn how to quickly determine a car's worth using accurate, instant and free online tools. Our comprehensive guide also offers essential insights into factors that influence a car's value and explains how to enhance your car's resale value.

Updated 2 June 2024
Summary
We have published this guide to make car valuations transparent and share trusted free and paid online tools that value cars with confidence. We cover:
Know This First - Understand Key Considerations for Your Car's Valuation
There are three main reasons you'll need to get a car valued:

Car Loan Expert Founder Christopher Walsh shares his views on why accurate car valuations are critical:
"As someone deeply involved in the car industry and personal finance, I've witnessed firsthand how crucial accurate car valuations are in making informed financial decisions. Whether buying, selling, or insuring a vehicle, understanding its true market value is key. I often see individuals over-insured or overpaying for a car because they didn't have the right valuation - this leads to financial strain.
We've published this guide to share tools that avoid spending any more than you need to on a car. The online tools we've highlighted provide more than just numbers on a screen; they represent a combination of market data, industry trends, and years of accumulated expertise, all geared towards providing realistic car valuations.
Furthermore, the condition of your vehicle, its history, and how well it has been maintained can significantly impact its value, and we've listed these factors to be aware of to give you more context when using online valuation tools. As we continue to improve this resource over time, our aim is for it to become your go-to source for all things related to car valuation".
Selecting the perfect car valuation tool can make all the difference. We suggest starting with the real-time insights from CarPrice for a quick, no-cost assessment. For the full details at a fixed $5 cost, CarJam offers comprehensive reports to deepen your understanding with a detailed history. For anyone wanting a valuation range based on trade-in or private sale, RedBook provides an in-depth valuation that justifies its cost.
See what you can expect from each provider to make an informed choice:

There are three popular free car valuation tools and two paid options. To help show the difference in reporting, we have used the details of a 2014 Peugeot 308, which has driven 67,000 km and has the number plate HSB753.
1. Free Online Valuation Tools
2. Paid Online Valuation Tools
Warning: A MotorWeb Vehicle Information Report, available for around $15, does not include the value of the vehicle. We suggest avoiding this service and report - you can see an example of what the report looks like here.
3. Other Online Tools (Free and Paid)
Many car dealerships offer free online car valuation services, although you will usually have to give your contact details before a report is issued. AutoGrab (a car valuations data service) usually provides the valuation. An example of such a service includes W.R. Phillips (a New Plymouth car dealer), but there are many others.
There are also paid valuation services by professional appraisers, who will require car details, photos, and other details before taking payment and emailing a quote. Examples include New Zealand Vehicle Valuations which charges around $150. Tower Insurance also lists vehicle valuers operating throughout New Zealand and offering appraisals.
Warning: Many car valuation 'tools' and 'services' don't generate online quotes. Instead, they are likely to be lead-generating and data gathering forms. Please be careful about sharing your details that requre you to 'submit for a quote' as you may start to receive sales calls rather than a valuation.
4. Dealer and Trade-In Assessments
A visit to a dealer or car yard can give you a practical valuation, which is especially useful for trade-in purposes. Remember, dealer estimates are often lower than market value, so it's important to have other online valuations as a benchmark so you can negotiate, especially if you're trading in a car.
Our View: Each valuation tool and method offers distinct insights, helping you build a comprehensive and accurate understanding of your car's current market value. This information is vital for making informed decisions in any vehicle-related financial transaction.
| Service Name | Cost | Data Sources | Valuation Type | Features | Sample Report |
|---|---|---|---|---|---|
| BestCar (CarPrice.co.nz) | Free | OptiFleet | Residual value estimation | Real-time sales data and market trends, valuation range with mid-point | Download |
| ValueMyCar.co.nz | Free | Not specified | Ballpark estimate | User-friendly, quick estimate, no detailed report | Download |
| Trade Me Value My Car | Free (Trade Me membership required) | Dealers and private sellers network | Market-based pricing range | Dynamic pricing, detailed report with specific details | Download |
| CarJam.co.nz | Paid (~$5) | Comprehensive vehicle records | Detailed assessment | Historical odometer readings, damage records, comprehensive report | Download |
| RedBook.co.nz | Paid ($19.95) | Detailed data sources | In-depth valuation | Suitable for unique/rare vehicles, highly accurate valuation | Download |
Pros and Cons of the selected online valuation tools:
Overall, each tool offers distinct advantages depending on the user's needs:

Our list explains numerous factors that influence a car's value, using relatable examples to help you better understand car valuations.
1. The Manufacturer's Reputation
2. The Model
3. Age
4. Mileage
5. The Exterior Condition
6. Interior Maintenance
7. The Service History
8. Features and Modifications
9. Fuel Efficiency and Type
10. Accident History
11. Ownership History
12. Market Trends and Demand
13. Regional Factors
14. Warranty and Guarantees
15. Technological Advances
16. Seasonal Factors
17. Safety Features
18. Emission Standards Compliance
19. Luxury Add-ons
20. Brand Loyalty and Reputation
21. Supply and Demand

Protecting the value of your car not only maintains its functionality but it's also crucial for ensuring it retains its value over time.
Our list of proven and effective ways to keep your car in top condition and maximise its resale value is as follows:
1. Routine Cleaning Inside and Out: Regularly clean your car, including its interior and exterior. Frequent vacuuming of the interior prevents the build-up of dirt and debris, while gentle exterior washing preserves the paintwork.
2. Prompt Scratch and Dent Repairs: Address any scratches or dings as soon as they occur. Neglecting even minor damages can lead to rust and decrease your car's value. Professional touch-ups can maintain its appearance and structural integrity.
3. Follow Maintenance Schedules: Follow the manufacturer's maintenance schedule rigorously. This means regular oil changes, fluid checks, and spark plug replacements to keep the car running smoothly and can prevent costly repairs.
4. Managing Mileage: High mileage can significantly reduce a car's value - the costs of repairs are significant, and the more KMs on the odometer, the higher the chance of a breakdown or repairs.
If you're a heavy driver, consider selling the car earlier than planned to maintain its resale value.
5. Regular Washing and Waxing: Regularly wash your car and apply wax every few months to protect the paint and give it a new shine. Also, ensure that all lights and bulbs function correctly to maintain its exterior to a high standard.
6. Tyre Maintenance: Check and maintain tyre pressure regularly according to the manufacturer's recommendations. Replacing worn or damaged tyres promptly is also important. Keep the spare tyre in good condition.
7. Responsive Dashboard Alerts: Don't ignore dashboard warning lights - it's very easy to do but can have significant consequences if the issue is serious. Addressing alerts promptly can prevent further damage and maintain your car's health.
8. Strategic Parking (to Minimise Prangs): Park in less crowded areas to minimise the risk of scratches and dents from other vehicles. This means parking in further away areas of a supermarket car park to avoid accidents, backing out, or being hit while not in the car.
Car park prangs are all too common throughout New Zealand but can be limited, with the consequence being some extra walking.
9. Under the Car Care: Underneath your car is often out of sight and out of mind, yet it plays a critical role in maintaining its overall health and value. Regular care of this area is essential, particularly in areas of New Zealand where road salt, moisture, and debris are prevalent.
10. Oil spraying: This involves applying a protective oil-based coating to the undercarriage of your car. This coating is a barrier against rust and corrosion, significantly reducing a vehicle's lifespan and resale value.
It's most beneficial to apply this treatment every year before winter begins, as this is when roads are likely to have the most salt and moisture, which accelerate rusting.
11. Regular Engine Checks: Neglecting engine maintenance can lead to serious problems, impacting the vehicle's performance and value. Regular engine inspections and servicing are essential, ideally per the manufacturer's schedule.
These checks should include examining engine components, checking oil levels, and ensuring no leaks or damages. A well-maintained engine not only prolongs the life of your car but also plays a significant role in maintaining its resale value.
Potential buyers favour a car with a well-documented engine care history and regular maintenance.

Valuation discrepancies often arise due to differences in the data sources and valuation methods each service uses. Trade Me, for example, uses a broad dataset of local sales, while other services factor in additional elements like vehicle conditions or market trends. For these reasons, it's essential to view these valuations as a range and consider getting a professional appraisal for a more precise figure.
A comprehensive service history can significantly boost a car's valuation. It reassures buyers about the vehicle's upkeep and suggests fewer potential issues, enhancing its appeal and value.
Yes, they can, but not always positively. High-quality modifications may increase value, especially if they enhance performance or safety. However, some modifications can lower a car's value, especially if they're not professionally done or appeal to a niche market.
It's a good idea to check annually or if you're considering a sale, purchase, or insurance renewal. This will keep you updated on market changes and help you make informed decisions.
High mileage can lower a car's value, but it's not the only factor. The car's condition, maintenance history, and model can mitigate the impact of high mileage.
Yes, car colour can influence value. Due to their widespread appeal, common colours like black, white, and silver often have better resale values per this 2022 Forbes article.
Our car valuation-specific glossary is the best starting point: