IN physics, the Greek letter "delta" indicates a change in value, a term that allows you to utter massively cool NASA-speak such as, "What is the delta in vector?" Or velocity. Or viscosity. After a long night at the Delta frat house, you may well wonder, what is the Jägermeister delta?
Auto showrooms have deltas too — the difference in price between one model and its upgraded version. For instance, the Porsche 911 retails for $71,300. The 911S — the sportier model with slightly richer amenities — costs $81,400, for a delta of $10,100. What do you get for your hard-earned delta? A bump in horsepower, from 325 to 355; a paltry decrease in 0-60 time, from 4.8 seconds to 4.6; a slight — and almost entirely theoretical — higher top speed of 182 mph versus 177 mph. How deep under the jail would you like them to bury you?
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