Decisions Decisions: Whose Problem Is It Anyway? Appropos of the Bernoulli Equation & Social Proximity; Is there an answer?

2008 Lamborghini Murcielago LP640 Roadster

2008 Audi R8 Coupe quattro with Auto R tronic

2009 Nissan GT-R Premium Coupe

2008 Audi A6 4.2 with Tiptronic

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		$372,200	$118,000				$71,900	$56,300
		N/A	$109,740				N/A	$52,361
		N/A	N/A				N/A	$54,853
		N/A	$150,055				N/A	$82,649
		$7,768/month*	$2,463/month*				$1,500/month*	$1,175/month*

Cash back: N/A APR for 48 months: N/A	Cash back: $0 APR for 48 months: 4.99%	Cash back: N/A APR for 48 months: N/A	Cash back: $0 APR for 48 months: 0.90%
Gas Mileage	8 mpg city/13 mpg hwy more info	13 mpg city/19 mpg hwy more info	16 mpg city/21 mpg hwy	18 mpg city/25 mpg hwy more info
Green Rating	21	47		58
Engine(s)	6.5L V12, 48 valve, 640@8000 hp	4.2L V8, 32 valve, 420@7800 hp	3.8L V6, 24 valve, 480@6400 hp	4.2L V8, 32 valve, 350@6800 hp
Transmission	6 speed Manual,6 speed Automatic	6 speed Manual	6 speed Manual	6 speed Automatic
Basic Warranty	24000 Mi./24 Months	50000 Mi./48 Months	36000 Mi./36 Months	50000 Mi./48 Months
Powertrain Warranty	24,000 Mi./24 Months	50,000 Mi./48 Months	60,000 Mi./60 Months	50,000 Mi./48 Months