Transformers can be limited in terms of which vehicle companies are willing to allow them to use their licensed vehicles. e.g.: Porsche no longer permits any of their vehicles to be made as Transformers, which is why Jazz was a Soltice instead of a Porsche and Bumblebee was a Camaro instead of a Beetle (VW being owned by Porsche).

Binaltech/Alternators (BTA & KISS Play) has given us a nice range of ultra-realistic licensed vehicles though.

I do wish that Hasbro would've based their follow up post movie toy line and cartoon on the movie by using licensed vehicles and making the robots look more "real life", but as Eric Siebernaler said, Animated is a very divergent path (he didn't say this in a positive or negative way - neutral tone). But I personally would've liked to see Animated draw inspiration from the movie instead of going to the said divergent path of being Cartoon Network'd. JMO.