You can always spot a sports utility vehicle (SUV) on the road quite easily because of its unique design characteristics such as high ground clearance, a fairly boxy body and high driving position.

While SUVs are similar to multi purpose vehicles (MPVs), they are not ideal substitutes for each other. The tall ride presents a challenge for small children and the elderly to get in and out of the vehicle, and there are no sliding doors to aid a harried parent with his or her hands full.

Here’s what you should consider if you’re thinking of buying an SUV.

SUVs are generally classified according to size: mini/compact, mid-size and full-size. Compact SUVs are generally smaller, lighter and consume less fuel. As you upsize, you also move up in engine power, passenger room and price.

It is fairly easy to get in and out of an SUV because of its wide doors and ample headroom. However, the higher ground clearance can pose a tricky task for shorter people, children, the elderly and the disabled. Ladies in short skirts should be mindful of their deportment when entering and alighting unless they intend to show off their underwear.

A foldable third-row seat with a split design lets you expand the cargo area when needed. Some models come with a roof rack, but you have to be careful how you load the cargo onto the roof to lessen the likelihood of a rollover accident.

Although some SUVs have off-road capabilities, this is often a secondary consideration as most of the driving is done on paved roads and urban areas.

Most SUVs come with either four-wheel drive (4WD) or all-wheel drive (AWD). Both systems allow all four wheels to receive power from the engine simultaneously, but there are some differences. 4WD can be full-time or part-time and have a “high” or “low” setting which the driver can select depending on the terrain and off-road situation. AWD doesn’t offer the low-range gearing of 4WD, but it is sufficient for bad weather conditions and moderate off-road driving.

Statistics show that SUVs are more prone to rollover accidents than other types of vehicles as they have a relatively high centre of gravity. Safety features like electronic stability control (ESC), anti-lock brakes and traction control help to keep the vehicle from skidding when cornering or on slippery roads.

Besides dual front air bags, some models come with extra side air bags and side curtain airbags for front and rear passengers.

A reverse sensor is useful for warning the driver when the rear bumper is near a solid object like a pillar, as the added height of SUVs can prevent drivers from seeing behind them when reversing. A rear-video camera is one step up on safety as it offers a better view during reversing if one should need to detect a small child or pet near the vehicle.