Chrysler CEO Sergio Marchionne is giving up his custom Dodge Challenger SRT8 for charity auction. How much would you pay for a 540-horsepower special with a pedigree?

The Tesla Model X has been delayed by one year, with the company seeking to focus on Model S production instead. For some, it's likely not a big deal--but for others, it might be enough to make them look elsewhere.

McLaren's P1 and the LaFerrari have been compared relentlessly since their nearly simultaneous debut at the Geneva Motor Show. We decided to take the hypercar fight to video chat for our weekly Hangout on Air.

You'll find all of this and more in today's car news from around the High Gear Media network, right here at Motor Authority.

Sergio Marchionne Gives Up Dodge Challenger SRT8 For Charity

Production Of Tesla Model X Delayed

LaFerrari Vs. McLaren P1: Prize Fight, Round 1 Video: Hangout With Motor Authority

Next-Gen Lincoln Navigator To Feature V-6, May Eschew V-8: Report

Future Of The Lexus IS F In Doubt: Report

Mercedes Celebrates 50 Years Of The Pagoda-Roof SL At Amelia Island: Video

Jaguar Joins BMW, Other Luxury Makes, In Adding Start-Stop For Fuel Savings (Video)

Tesla Wins One In Minnesota: Bill To Ban Its Stores Defeated

2013 Hyundai Veloster Turbo: Driven

NHTSA Nixes Probe Of Ford Explorer, Mercury Mountaineer, Lincoln Aviator