Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

One Lap of the Web: Jay Leno does the T-REX, Porsche 912 restoration and cars with swimming pools

We spend a lot of time on the Internet -- pretty much whenever we're not driving, writing about or working on cars. Since there's more out there than we'd ever be able to cover, here's our daily digest of car stuff on the Web you may not otherwise have heard about. -- Watch as Jay Leno explores the 2013 Campagna Motors T-REX, a three-wheel, street-legal motorcycle that is insanely fast, especially since one of the powertrain options is a six-cylinder BMW engine and the thing weighs practically nothing.

New technology combats drowsy driving

Auto supplier Takata is introducing a new driver-alertness warning system to the commercial trucking industry to keep drivers awake. The SafeTrak electronic vision system sounds an alert if a trucker is driving erratically or unintentionally drifting from a lane. A recent AAA study for traffic safety found that drowsy driving is a contributing factor in 16.5 percent of fatal car crashes in the United States.

2015 Lincoln Navigator starts at $62,475

The 2015 Lincoln Navigator will cost $62,475, including destination, when it hits dealership lots. The optional reserve package, which comes with 22-inch wheels, upgraded leather and premium Ziricote wood trim, costs $69,975. Four-wheel drive adds about $3,000 to the price.