We've all witnessed terrible parking. Parallel parking so atrocious that passengers need a taxi to the curb, cars angled way further than the painted angles on the street, bumper bashing, and just plain bad depth perception.

Even in an era of bumper-mounted sensors and backup cameras — heck, some Toyotas and Fords park themselves — bad parkers won't ever stop making passersby chuckle. Unless, of course, it's your car they're parked next to.

In that case, Shinebox Print, a small design studio in Arizona, has an elegant, $6.95 solution: 20 cleverly-worded, poster-worthy note cards to stick on the offender's windshield or dash.

"Armed with this bad boy, you can now let your enemies know exactly how you feel about their crappy parking," the website says. Indeed, some are so cheeky that you may want to keep an eye on your ride in case the other guy gets a tantrum.

Not recommended for use in South Boston.

Nick Heidfeld drives his BMW Sauber car during a practice session for the Hungarian F1 Grand Prix at the Hungaroring circuit on July 25. (Reuters/Dominic Ebenbichler)

BMW announced Wednesday it is dropping out of Formula One racing at the end of the current season. It also said the upcoming 760Li will be powered by a twin-turbo V-12 producing 544 horsepower and 553 lb.-ft. of torque at 1,500 revolutions per minute. It will be coupled with an eight-speed transmission.

Automotive marketing often involves accessories. Mini, which has a history with bands such as the Sex Pistols, The Clash, and the Rolling Stones, is offering the latest in "Brit Chic" - a line of apparel including duffle coats, branded "Wellies," Lapeer trapper-style winter hat, and rock star belt.

Plastic wood? Many of us always though the highly coated dashboard "wood" on many vehicles wasn't real anyway. But now Ford is working with a German company to develop a plastic "wood" that can be used in injection molding. The goal is to have a product capable of being recycled (remanufactured) five times.

Like our own John Paul did with a plug-in mileage cost computer, the Globe's Hiawatha Bray tested another OBD accessory this week - a snitching little black box that sends discreet text messages to parents if a young driver exceeds speed limits. It's so smart that it recognizes highways and major thoroughfares from residential back roads, and if turned off, sends another tattletale to mom and dad.

While certain cars come standard with programmable speed limiters and there's no shortage of GPS tracking devices out there - remember the short-lived Disney cell phone? - there's nothing quite like 20-year-old Jonathan Fischer's Speed Demon.

Fischer, of Lunenberg, Mass., started the project when he was 16 after a local teen died in a high-speed crash, and has since won awards and thousands of dollars to pursue his dreams of entrepreneurship - and to help parents and their new drivers feel safer.

The Speed Demon costs $250 plus $15 per month for unlimited texts and precise mapping of each incident via his website, livefastdriveslow.com. Bray wrote an enthusiastic review, and was indeed annoyed by the alerts as he sped to meet Fischer "before he was old enough to buy beer."

Read more about the Speed Demon and other fun gadgets in Bray's tech lab column.