100% Satisfaction AUTO SALES & SERVICE

Service Your Car Today

3in1 Advanced Auto Sales & Services is the most honest auto dealership you will ever find. Integrity and ethics is how we have built our reputation. Please come and see how we can help you find your next car or truck.

Pre Owned Vehicles

We purchase and sale pre-owned vehicles that have a great service record from the start: No lemons, no salvage titles, no major accidents. All our vehicles have you the customer in mind. We specialize in BMWs, we also take requests. Let us find a vehicle for you.

Auto Services

Any automobile purchased from us, is fully inspected and serviced. Our commitment to sale mechanically sound and clean cars is guaranteed. We understand how important reliability and style is to our customers. We believe in Trust, Honesty, and Integrity.

Leading Dealer in Used Cars & Services

2010-2019 - Used

$10,000 - $30,000

  • Color
  • Model
  • Year
  • Mileage
  • Condition of car/truck

2000-2010 - Used

$3000 - $10,000

  • Color
  • Model
  • Year
  • Mileage
  • Condition of car/truck

Classic - 1999- Used

$10,000 - $50,500

  • Color
  • Model
  • Year
  • Mileage
  • Condition of car/truck


100% Satisfaction

Our Trusted Brands

Have relationship with auto dealers in town and online. Our goal is to get the right parts you need.

Maintenance & Service

We are happy to provide you with services for your vehicle.

  • Hard find problems.
  • Engine Diagnostics.
  • Recommendations.

“I am very satisfied with 3 in 1 Advanced Auto Sales and Services. I was suprised to be met with more information I could ask for. This company is amazing. Thank you!”

“Fix my car problems in no time.”

“Leonard is very professional and polite. Refreshing.”

“I can count Leonard to give me honest answers about the problems with my vehicles.”

Get In Touch

(303) 304-8958


431 84th Ave
Thornton, CO 80620



Open Hours

Mon:9am - 10am
Tue: 9am - 10am
Wed: 9am - 10am
Thur: 9am - 10am
Fri: 9am - 11am
Sat: 1pm - 8pm 
Sun: 9am - 9pm

Send A Message

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