DRL's have been a law in Canada since 1990. They have been shown time and again to increase safety and create more awareness of an approaching vehicle especially on a 2-lane road.

Many vehicles already include DRL's in the USA (GM fought for the lifting of the DRL ban in the mid 90's)

My 'Dub has Bi-xenons DRL's and they can't be turned off, furthermore all my BMW's have had them. I think it's a great feature!

It wouldn't be hard to implement because many countries already require it, ex: Canada

Toyota, Lexus, Honda, BMW, Mercedes Benz, Porsche, GM, Ford, Chrysler etc all have them already either programable or standard

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The Present:
2014 Audi Q5 TDI Prestige
The Past:
2013 Lexus GS350
2013 VW Golf TDI
2007 BMW X5 4.8i LOADED & Loved
2009 VW Jetta
2008 VW Touareg VR6
2005 BMW X5 3.0i
2005 BMW Z4 3.0i
2004 BMW X5 3.0i
2003 BMW 325i
2000 Ford Explorer Eddie Bauer 4x4