Some models include a digital speedometer that can be easier to spot and process at a glance than a conventional needle gauge.

FORBES: Best New-Cars (And Features) For Senior Drivers

Tuesday afternoon's bond sale was the culmination of a frenzied process that began Monday when underwriters at Goldman and Deutsche Bank contacted investors around the world to gauge their interest in buying Apple's debt.

WSJ: Apple to Sell $17 Billion in Bonds