in my experience, in buying a (new) vehicle, its usually worth signing up to one of those services online that tell you what the dealer pays for a car. It costs about 20$ and they give you the dealer price, and usually a dealer contact in the area who they recommend. We bought our last car for 700$ over dealer cost.
Dealer cost is a bit bullshit though, the dealers dont actually pay that, as most manufacturers offer significant volume discounts to dealers that sell a lot of cars, which is where a lot of the profit comes from. We would've likely haggled down to a price within 1-2% of the price the service provided, but for the 20$ - and the day we saved at the dealer - it was worth it.
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Hot: 2001 Estoril M RoadsterZCP 19's michelin PSS, ZHP knob, JL 8W3
Cold: 2002 TiAg M3 6mt
deoranged, dechromed, led tails, ZHP knob, UUC SS v3, GROM, OEM 18's w310's,
Fun: 2006 YZF-R6, black, ohlins, pazzo, BMC, cat delete, vance hines csone, YEC racing tune,-1 +2