If you're looking for a diesel-powered SUV with all-wheel-drive capability, your options are about to get more limited. Citing leaked order guides, CarsDirect reports the diesel versions of the Chevrolet Equinox and GMC Terrain are ditching AWD and will only be offered with FWD from 2020. General Motors has since confirmed the change to the publication, citing "relatively low demand" for the all-wheel-drive option with the 1.6-liter turbodiesel. If you still want either model with AWD, gasoline variants will soon be your only option.

If, however, you still desire an AWD diesel Equinox or Terrain, many dealers still have them in stock with heavy discounts, so now would be a good time to take the plunge.

But when these models become unavailable, those who still want a diesel-powered, all-wheel-drive crossover will have to pay a premium. Mazda still offers the CX-5 with both all-wheel drive and a diesel engine in its range-topping Signature trim, which starts at around $42,000. That's considerably more expensive than the starting prices for the 2019 Equinox and Terrain with a similar drivetrain. The diesel all-wheel drive Equinox, for example, starts at $32,495, while the Terrain version starts at $34,795.

The diesel-powered CX-5 is also less economical than its GM competitors, recording four fewer miles per gallon than either the Equinox or the Terrain. That said, the CX-5 makes up for this by offering higher outputs, with 168 hp and 290 lb-ft of torque compared to the 137 hp with 240 lb-ft produced by GM's 1.6-liter turbodiesel. But those who prefer all-wheel-drive may not be happy about having less options. Then again, GM's comments about the lack of demand suggests that not many people will complain.