You would want to find out the exact type of racing being done in your area. "On road" could mean a few things: touring sedans, pan cars, twelfth scale, etc. Most likely, though, you are thinking of touring sedans, since they remain the most popular among the afore-mentioned classes.
Competitive touring sedans (1/10th scale) include, but are not limited to:
Tamiya TB Evolution
HPI RS4 Pro 3
I'm sure there are some I have missed. But with any of the above cars, you would be reasonably competitive.
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