How much would my insurance go up?

ok so my old car just broke down. The radiator is ******. The air compressor will not work even though we just put a new one in it (guy said it might be the ecm) and the head gasket blew. So im in the market for a new car. I saw this really nice 2005 mustang, the base v6 version, with relatively low miles. Around 150k. I was just wondering how much my insurance might go up if i switched to that car. Im insured with geico, i drove a honda civic and i have a wreckless driving by speed under my belt. Which was reduced to 19 over by the judge. I currently pay 170 a month. Any thoughts?

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