Thanks to wolfhunter for starting this poll! We've contacted the vendor on your behalf and they've made the Mechanix Wear Original Gloves (2-Pack) available.
I've bought a pair of Mechanix Original gloves a while back and they are very comfortable, grippy and I still have enough dexterity to do a variety of tasks:. They are also used by gun-enthusiasts because of their durability and comfort.
a tip: they have a handy size guide (pdf you can download and print: put your hand down on the paper and voila) so you can easily find the right size for you.
I own several pairs of tactical gloves, I can tell you now that I have owned both the Mechanix Original Covert and M-Pact Covert, they are both fantastic gloves if you are just looking for something to work on your car, or for something a little more "high performance".
LEOs may enjoy the M-Pact, they fit well, are moisture wicking and provides rear impact protection for the back of your hand. The gloves come with a useful pull-loop at the inside front wrist.
One caution is that these gloves are not flame-retardant, so beware of your intended application.
The first half-dozen models featured on this poll really come down to a preference in colour. My personal experience, the added padding in the M-Pact does not lessen the dexterity or feel of the glove significantly as with other "gel-impact" solutions I have tried on. I have a fairly large hand with a 3.5" span but generally wear the Medium size - it fits snugly, but not too tight.
Other options people might want to consider are Ironclad, but a lot of their "tactical" range is now sold under the 5.11 Tactical umbrella, of which I own both two sets of original Ironclads and two of the newer 5.11 tactical lines, although none of these other gloves I own feature "gel impact" or similar so I couldn't offer a good "operating" comparison with regard to the dexterity.
Not the same level of protection. You need something with knuckle guards and palm support, plus, at the speeds you can go on a bike, these won't keep your hands super warm!