Don't get tangled in cheap, subpar overseas work.
I have done APIs and websites like this before. The website will be stable for years to come and will not cause you headaches after completion.
I have worked on 2 websites with similar features at the moment, but just different object (yours is about cars, my 2 were about IPs and Shipping Mail - each come from different places - IP you can have .org, .com, .net, etc. - Shipping Mail you can have from Fedex, DHL, UPS, etc.) You get the point. The shipping one went live and is now private, but the IP one can be found at www.ipaddress-finder.com.
Let me know if interested.
Cheers,
Ajk