Modified cars are a mixed bag. Sometimes, they're incredibly well built and better than the original, but too many times they're only partially finished or end up being rushed as their owners get late-project anxiety. Whatever the case, buying a modified car can be a stressful process if you haven't done your homework ahead of time. The good news is that you can get a good deal on a reasonably well sorted project or modified car, but you'll need to be careful. Looking at used Lexus LXs earlier today, it became clear that there are as many modified vehicles for sale as there are clean examples.

This LX got me thinking about the breakdown between buying a rig and building one. The modifications made by this Lexus' seller are almost exactly what I would do if I were building a light overlanding rig. What could go wrong? I'm still on the fence about the Lexus, but the three topics below will help you make the right decision on buying a modified car.

Even if the mods are well done, you'll want to have the vehicle inspected before you buy.Bring a Trailer

Understand your personal taste

I mentioned the LX470 and how the owner's updates were pretty close to what I'd do with the truck. That's an exception to the rule, because 90 percent of the time I walking away from a sales listing because of modifications, rather than the other way around. If you're hoping to find a tastefully modified car that matches your exact tastes, you could be waiting a while. If you're hoping to sell a modified car, the same is true in reverse. Finding a buyer for your extremely personalized project car may not be the easiest thing you've ever done.

It's a good idea to seek out vehicles in solid shape, regardless of mods.Bring a Trailer

Be aware of condition and quality

This Lexus looks to be well maintained and in good shape. It also doesn't hurt that the LX is one of the most reliable vehicles built by one of the world's most quality-conscious automakers. Even so, it's hard to know what you're getting with this, or any other, modified vehicle. There's a little rust in this image, but the lift kit, wheels, and bumper mods all look good. However, even if the truck looked brand-new, you'd want to get a pre-purchase inspection. An independent mechanic can tell you if there are potential issues that are unrelated to mods, and you'll want to be sure that any modifications are installed properly.

Some mods are more useful than others.Bring a Trailer

Keep an eye on the price

Most people are reasonable when it comes to selling their modified cars, but there are hundreds of "I know what I got" memes on the internet for a reason. Some sellers want to recover every penny of the money they spent customizing their cars. They're convinced that the mods drastically increased the car's value and can't understand why the customized car isn't as attractive to you as it is to them. Tread lightly and be careful not to insult the owner, but it's your job to work toward a reasonable, fair price.