Cost-Effective Fleet Policy Definition and Implementation
One Auto API gives fleet operators the data and calculations needed to define, manage, and evolve fleet policy with confidence. From Whole Life Cost Data to P11D Calculations and EV Data, trusted data supports better decisions for both fleet managers and drivers.
Whole Life Cost Control
Move beyond leasing costs with a tailored Whole Life Cost (WLC) data feed designed to support your fleet policy. One Auto API provides a forward-looking view of whole life costs that includes:
Acquisition
Service, Maintenance and Repair (SMR)
Depreciation
Fuel Cost
Insurance
Employers National Insurance
Capital Cost
Emerging EV Taxes
Creeping BIK rates on EVs and PHEVs, the emergence of new taxes on electric vehicles and complexities arising from charging costs and reimbursement mean it’s never been more important to take a forward-looking view on fleet costs.
One Auto API will tailor a Whole Life Cost Data feed to your precise needs to provide you with confident fleet cost control.
Company Car Tax Calculations
Our Company Car Tax calculator API is simple, accurate and easy to integrate in your digital landscape. This allows fleets to:
Acquisition
Service, Maintenance and Repair (SMR)
Support Confident EV Decisions
One Auto API provides rich EV-specific data to power calculators and comparison tools, including:
Real-world driving range
Charging times
Estimated pence-per-mile costs
This helps fleet operators support the transition to EV by giving drivers practical, comparable insight for real world use scenarios — not just headline figures.
Support Configurators and P11D Reporting
Access accurate vehicle and factory option pricing to:
Power vehicle configurators and choice lists
Support historic P11D reporting
Built for Fleets of Every Size
All data and calculations are available on a pay-per-use basis, enabling fleets of any size to deliver high-quality tools and insight to drivers — without the overhead of fixed annual licensing.
Smarter Data for Smarter Fleets
One Auto API helps fleet operators control cost, simplify complexity, and support drivers with confidence.
Book a call to see how One Auto API can support your business
Sign Up for a FREE API Account
Sign up for an account to test our API for FREE. Get access to online documentation, create API keys and make test calls to our sandbox before starting to use live data.
