Well haven't thought about which one to get, looking for one in used
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Ek is a fun car but the downside is mileage which still isn't that bad, 12km/l is enough, the way i drive i never get more than 10kml 
Rockmars amp with pioneer woofer would be enough, was talking fellow Pwheeler today and he had installed it in his Vitz and is satisfied with it.