This I know...what I meant was opting for a 10-watt Sylvania bulb versus going to the dealer to buy an OEM 10-watt Philips bulb (at three times the price), as an example. Just dealing with semantics, here...
2009 ML350 (84K) - Family vehicle
2001 CLK430 Cabriolet (71K) - Wife's car
2005 BMW 645CI (124K) - My daily driver
2012 Mustang V6 (60K) - Daughter's car