Consumer Reports

Consumer Reports, originally Consumers Union, is a non-profit consumer group based in the United States that focuses on independent product testing, investigative journalism, consumer-oriented research, public education, and consumer advocacy.

You'd be misled if you assumed Consumer Reports was just good for that. The organization is unique in that it purchases the vehicles it tests rather than relying on press loaners. After then, each automobile is thoroughly tested both on and off the track. The outcomes are documented and made available on the organization's website. Among other things, you'll find information about a vehicle's turning circle, performance, and real-world fuel economy.

Detailed information:

Cost: $6.95 per Month
Best for New or Used Cars? Both

Website: https://www.consumerreports.org/cro/index.htm