The Enclave has the highest customer loyalty rate of any Buick vehicle.

The Buick Enclave lineup will be expanded with a new Sport Touring Edition for the 2017 model year.The appearance package matches the Sport Touring trim available for the Encore and recently added to Buick's sedan lineup -- the LaCrosse, Regal and Verano -- for the 2016 model year.

The Enclave edition centers around a Satin Black Ice-finish grille and 20-inch chrome-clad wheels with Satin Black Ice accents, stepping up from the 18-inch wheels for the rest of the Sport Touring family.

The upgrade will be available for the Leather and Premium trims, with a choice between White Frost Tricoat, Crimson Red Metallic and Ebony Twilight Metallic exterior colors.

The company claims the Enclave has achieved the highest loyalty among any Buick nameplate, with 33.4 percent of sales from returning customers last year. Sales are up by nearly 10 percent in the first two months of the year, with volume only slightly behind Buick's best-selling Encore.

"That's the highest loyalty rate among all Buick models and one of the top model-to-model loyalty rates in the crossover SUV segment, topping key competitors such as Audi Q7 and Acura MDX, as well as vehicles like the Jeep Grand Cherokee and Toyota Highlander," the company said in a statement.

The Buick Enclave Sport Touring Edition will go on sale in the coming weeks.

Live images by Brian Williams.