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

One Lap of the Web: New Transformers, home-built cars and two Mercury Marauders

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. -- Michael Bay has been releasing the cars of “Transformers 4” for the past couple of months, and the latest one to be revealed is the Pagani Huayra (“why-ra”).

Best and worst states for car insurance prices

Drivers in Louisiana and Michigan are hit hardest when it comes to car insurance premiums, while those in Maine and Iowa pay the least, according to here. Ten most expensive states (average annual premium) -- Louisiana: $2,699 -- Michigan: $2,520 -- Georgia: $2,155 -- Oklahoma: $2,074 -- Washington, D.C.: $2,006 -- Montana: $1,914 -- California: $1,819 -- West Virginia: $1,816 -- Rhode Island: $1,735 -- Kentucky: $1,725 Ten least expensive states: -- Maine: $934 -- Iowa: $1,028 -- North Carolina: $1,085 -- Ohio: $1,106 -- New Hampshire: $1,112 -- Idaho: $1,133 -- Vermont: $1,176 -- Indiana: $1,183 -- Washington: $1,226 -- Arizona: $1,227

Win a Seiko Sportura watch worth £395!

For a decade, Seiko’s Sportura range has acknowledged the link between great timepieces and great cars, with watches inspired by motoring and motorsport. And now you could win one of these fine watches, by answering one simple question: who is the reigning F1 World Champion? Click here to answer the question (it's multiple choice, so it's easy) and enter our competition Like the instrument panel of a sports car, Sportura dials are instantly legible; all have a jet-black background with orange or red hands, and a sapphire crystal with an anti-reflective coating.