I test drove both before the purchase.....3.0 was underpowered, even the dealer warned me before test driving. Then I drove the 4.8 and ordered that same day. Like what 08WhtX5 said, "This is a very subjective question and strictly depends on your needs and desires. If cost isn't a factor then I would go with the 4.8."

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Sasakyan Kita
'96 E36 / '02 E53 Sold / '07 E70