Yes. You would use tires with taller sidewalls.@68Coronet I took the liberty to compare your Challenger to mine with the differing wheel sizes, 20" vs 15". Was your Pic photoshopped? For 15" wheels would the tire profile be larger to fill the tire well the way it does?
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I really like the look. Retro to be sure.
Here is your Challenger w/15" Keystones...