In addition to all of the highly unique features mentioned
here, following are some of the downsides of owning a Hummer (some major, some minor). Consider these before you decide to purchase an H1 or H2 of your own:
Replacement tires of this size carry an equivalent price tag.
Takes some time to get used to driving a vehicle nearly 7 feet wide.
Narrow roads, parking, and trying to fit it into your garage each pose unique challenges.
Insurance is higher than most vehicles.
Gas mileage is poor (roughly 12mpg), especially when used as a daily driver.
Maintenance costs are high.
Depending on where you live, it might be difficult to find qualified mechanics.
Noisier road ride than many other SUVs.
Not enough A/C vents inside.
Difficult to pass other vehicles on narrow roads.
Resale value isn't very high.
Strange as it may sound, the stares and attention can get annoying over time.
Expensive to buy, and even more to keep.
Doesn't have much pick up & go. Seems lethargic taking off after a complete stop, making it hard to keep up with other cars. Top speed is around 90mph.
Priced too high for most people.
Despite the size of the vehicle, there's not much cargo space inside.
Towing capacity of 7,000 lbs. is not best in class for an SUV of this size.
Rear visibility is particularly difficult through the small back window.
Front visibility over the tall, boxy hood can be a challenge for drivers under 6 feet tall.
Difficult for shorter drivers to get into the vehicle.
Can only seat 6 passengers comfortably (counting the optional 3rd row "seat" that takes up the cargo space).
What appears to be a roomy interior actually feels somewhat cramped once seated inside.
Limited cargo space, even with the 3rd row seat removed. Maximum cargo space is listed as 86.6 cubic feet with the 2nd seat folded down, which is less than other full sized SUVs (Acura MDX, Honda Pilot).
You can choose any color you want for the inside, as long as it's "wheat".
The driving position takes some getting used to, as the upright windshield is very far away, and it's tricky determining the distance between the front of the vehicle and other objects.
The huge, full-sized spare is mounted in the rear cargo area, taking up the entire left side of this valuable space.
Even with the spare tire removed, a left-side third-row seat is not available. So the most you'll ever seat in a Hummer is 6 people.
Only comes with automatic transmission, so you'll have to leave the shifting to the Hummer.
Designed like a box with wheels.
Since a Hummer requires high ground clearance, many engine and transmission components are placed inside the cab itself -- taking up to 3 feet of space in some places.
You cannot attempt driving through tight places or maneuvering through obstacles due to its shear mass.
Due to its massive weight, it can be slow to stop in emergency braking situations.
Because the rear window is so high up, visibility using the rear view mirror is not ideal.
If you need to seat more than 5 people, then you must purchase the 3rd row seat option to seat one more person.
Knowing the height of your Hummer is crucial to verify whether or not you can fit through some drive-thru's.
The windows and windshield seem unusually small on a vehicle of the size.
Unless you really get stuck, the Central Tire Inflation System is a feature thats probably more trouble than it's worth, since the extra large tires take so long to deflate and then re-inflate.
There are large blind spots. Cars are practically invisible looking over your shoulder and through the rear window.
Lack of standard safety features: child safety locks, child seat tethers, side air bags.
Difficult to park in tight spots. Straight in and straight out are your best bets.