1. Overly Aggressive Seats

Well we have heard of perforated seats that are climate controlled. And now we have driver seats that range from flat benches to the sort of hip-huggers that you find in an F-15, but some of them might actually be less comfortable than they claim to be. The
BMW 7 Series features a massaging driver's seat, but the throbbing motions made by it can be felt downright Frankenstein compared to a real massage. In some of the more expensive models of Mercedes Benz, active side bolsters automatically inflate to hold you in as you take a corner. Now, they are real convenient on highways and winding roads, but the 90 degree turns in the city are a different thing altogether. They may result in a sudden rib pinching as the seats go hog-wild to keep up. So you might want to avoid heavy and oily food before you start your commute on the car. Otherwise you can wade through the Benz's onboard computer menus to turn the feature off.
2. Heart-Rate Monitor

No typo there, you read it correct enough. Volvo's Personal Car Communicator monitors the cabin and starts a signal on your keyfob if there has been an unexpected visitor inside the car. One of the TV ads show that a woman approaching her
Volvo S80 in a deserted parking garage, seeing the warning and hightailing it away. From safety perspective, this feature is good. But just imagine, what kind of paranoia a person must suffer from to have this feature in their cars.
3. Voice Turn-by-Turn Navigation

Navigation systems have become one of the most important car features for most people these days. While some of the voices are good, some sound quite bored, or even annoyed. Land Rover, as is suitable to its brand, utilises a nice British voice, but most other cars employ a female American voice whose intonations range from casually disinterested to downright annoyed. Some systems even go ahead to pronounce the local street names, but more than often the result is anything but clear.
4. iDrive

The German luxury car manufacturer trio, Audi,
BMW and Mercedes Benz, has similar dashboard interfaces. But BMW's iDrive may drive you total nuts sometime. Directional inputs land you to several submenus, but in most models there are no shortcuts or previous screen buttons around the knob. In most of the BMW models, street labels are placed on a horizontal plane no matter the direction of the street, and if you want to scroll along the map you have to spin the knob to move east/west, then click it down and spin it again to move north/south. Quite a task for a feature which is intended to ease your driving maneuver.
5. Self-Parking Cars

The self-parking feature is optional on the
Lexus LS sedan. What you have to do is: line up the superimposed square in the backup camera with your intended parking spot, then gently let go off the brakes and the sedan will slowly negotiate steer around adjacent cars as it backs into the spot. Press the brakes at the end to bring the car to a halt. But why do we need a feature like this: come on, we have all heard of something called valet parking.
6. Multi-Manual Owner's Booklets

The very thought of browsing through an owner's manual to figure out how something works is quite a boring task for most people. And just imagine your plight if you had to look through 10 of them. Yes, that's the number of pamphlets, manuals and quick-start guides included in some cars' libraries. So here is what a car maker needs to make note of: we know that the manual goes in the glove box, but that does not mean that it needs to be an entire box set.
7. Power-Sliding Doors

With the power-sliding doors on upscale minivans that feature all kind electronic cutoffs, we can be sure of maximum security. But, the power doors that can be controlled by remote 20 or 30 feet away can be a little too much. Besides they also add up to the cost of the van. Would not it be better to go for the manual sliding doors and do it ourselves.
8. Smart Transmission

Alright, the
Smart ForTwo does not really fall in the categories of conventional cars. The minicar's automated-manual transmission shifts gears with its own electronic clutch while the driver sees a traditional automatic setup. Driving in this car feels like riding a wild horse. Once you are through first gear, the transmission stutters, and shudders and takes an amazingly long time before engaging second. The same things happen when you have to shift to third, and fourth, and fifth.
9. Soda Can Cool Zone

This is for people who love to have their sold cold and fizzy. Lots of car manufacturers have started to offer air-conditioned compartments in their cars to keep the sodas and other drinks cool. However, there is one glitch to this feature: these cool zones get heated in the summer when the car is not running and chances are that when you keep your soda there, it may explode after a hot spell of weather. True that this compartment is not be used as a substitute for refrigerators, but still you might not like the idea of a soda bottle popping on your or your car's fabrics.
10. Rain-Sensing Wipers

There was a time when rain-sensing windshield wipers were a hot feature in luxury cars, but not anymore. This once premium feature has smoothly crept into models like the Chevrolet Cruze, and the upcoming
Fiat Linea T-Jet. They use infrared sensors to monitor a certain section of the windshield for moisture or dirt, then trigger the wipers to respond according to a threshold the driver sets. Quite a useful feature until they start working on their own. When one editor's Volkswagen Jetta had the rain-sensing wipers suddenly come to action on a dry day, it was kind of frightening.