Do you know if the apple mag airline safe one would work in a car??
Actually, Yes, it does however there are some strings attached... and it's still not technically supposed to work.
I've had it work in some cars and not work in others, however it only *powers* the MacBook, it does not charge it, as Apple advertises.
This is a combination of my own cars and ones that I have rented over the past few years...
Cars I have successfully used it in (Technically this should apply to each car's generation):
2006 Honda Accord
2004 GMC Yukon Denali (So I assume this works in 2001-06 Yukons, Tahoes, Suburbans, and Yukon XL's)
2003 GMC Sierra Denali
2007 Ford Explorer
2006 Ford F250
2008 Hummer H3
1997 Audi A4
2006 Chrysler PT Cruiser Convertible
2007 Jeep Commander
Cars I have not had it work in:
2005 Dodge Ram 2500
2001 Toyota Camry XLE
1997 Dodge Ram 1500
2005 Nissan 350z
2006 Toyota Corolla
2009 Toyota Camry Hybrid
2006 Toyota Prius
All Hyundai's (I've rented pretty much all their cars except for the Sante Fe, and the Veracruz) Most Kia's are sourced from the same parts, so it probably won't work in those ether.
It also does not work in the 12V port in my RV.
I hope this helps... however I would still recommend an inverter. It's the most cost effective and you can use it with many more devices than just your MacBook.