The gavel is already going. Forty vehicles from North Texas collector Sam Pack will be auctioned off during Barrett-Jackson's 49th annual Scottsdale Auction this week in Arizona. All of the models are offered at no reserve.

Pack is a Dallas-area Ford dealer who has collected over 400 models in his lifetime. In 2014, he put more than 130 models from his collection up for sale.

"Sam Pack has been part of the Barrett-Jackson scene for many years, so we are pleased with the opportunity to help him rotate some of his remarkable collection," said Craig Jackson, chairman and CEO of Barrett-Jackson. "The vehicles offered by Sam are an excellent representation of the diversity and quality that bidders have come to expect from Barrett-Jackson. Sam's collection, without a doubt, is a true celebration of our shared passion for automobiles."

Among the models Pack is bringing to auction are a 1952 Jaguar XK120 Fixed-Head Coupe that is powered by a 160hp DOHC 3.4-liter inline six-cylinder engine with double SU carburetors mated to a four-speed manual gearbox. But that's not the only Jaguar.

Lot #1390.1 is an unrestored, matching-numbers 1964 Jaguar XKE Series I OTS that comes with the Jaguar Daimler Heritage Trust Certificate. With less than 30,000 miles, this Opalescent Silver-Gray Jaguar is powered by its original 3.8-liter DOHC straight six-cylinder engine and a four-speed manual transmission.

Lot #1077.1 is a1952 Jaguar XK120 Fixed-Head Coupe that is powered by a 160-horsepower DOHC 3.4-liter inline six-cylinder engine with double SU carburetors mated to a four-speed manual gearbox.

Lot #1077 is a 1954 Jaguar XK120 Drophead Coupe powered by a 3.4-liter DOHC inline six-cylinder engine coupled to a four-speed manual transmission. This red Jag is one of 1,472 left-hand-drive models, and one of 466 produced with the Special Equipment Package.

There's also a trio of hand-built Kirkham Cobras, which are crafted from polished aluminum, copper and bronze.

Also headed across the block is a 1932 Ford Roadster nicknamed "Passion." Handcrafted by The Roadster Shop, the model is powered by a fuel-injected ZZ4 350ci crate engine that is paired with a TREMEC five-speed manual and onto a Ford 9-inch rear end.

"Sam Pack has built an incredible collection featuring multiple crown jewels that are coveted among collectors," said Steve Davis, president of Barrett-Jackson. "His 1989 Porsche 911 speedster (Lot #1390), for example, is one of only 823 delivered to this country and has just over 1,300 original miles.

"The depth and breadth of this collection is truly remarkable, and we're proud to have been trusted with its sale during our Scottsdale Auction."

The auction runs through January 19; more details on the Sam Pack Collection are available on the Barrett-Jackson website.

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A version of this story originally was published on our sister site AutomotiveMap.com.

This Jaguar is one of many from Sam Pack's collection that will be auctioned off this week.

Photo courtesy of Barrett-Jackson

This Jaguar is one of many from Sam Pack's collection that will be auctioned off this week.