The CarsXE API aggregates data from multiple vendors including the NHTSA into its API. They provide 4 APIs: vehicle specifications, history, market value and ownership cost.
The vehicle specifications API contains sample images of the vehicle you look up.
XML & JSON
Here's an example GET request you can make for a vehicle:
This Scrabble dictionary shows you the validity of a word in real-time as you plug it in. I also like this site b/c they have 2 million words (and counting) in their database and let you vote and collaborate on their resources. Cheers :)