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Hello, teachers!

Which is more idiomatic, is or has?
- Does your car have manual transmission? / No, it is/has an automatic.

Thank you very much.
Peace!
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The most idiomatic construction is with the contraction: It's an automatic.
Comments  
Well I'd say that saying "No, it is an automatic" and "No, it has an automatic transmission" would make sense to me...
 CalifJim's reply was promoted to an answer.