Mark Sliney
Mark Sliney at Fountain Buick GMC

Mark Sliney

Sales Consultant

Fountain Buick GMC

8701 South, S Orange Blossom Trl
Orlando, FL 32809

Contact Me
4.7
37 Reviews

Dealership Experience

11 yrs, 6 mos

Industry Experience

11 yrs, 8 mos

Specialties & Trainings

GM Certified - Buick/GMC/HUMMER

Mitsubishi Certified

4.7

37 Reviews

Write a Review

37 Reviews of Mark Sliney

August 11, 2026

Dealership Rating
Employee Rating

Excellent customer service was provided. Details where provided of the difference in the models selected More

by velez2180hickory
Service Price Transparency
Workmanship
Service Time
Service Communication
Recommend Dealer
Yes
Aug 11, 2026

Fountain Buick GMC responded

Thank you for recognizing our team's effort in explaining the model differences. We appreciate your feedback at Fountain Buick GMC.

July 23, 2026

Dealership Rating
Employee Rating

Everyone is friendly and knows what they are doing and gets straight to the point. I love how everything flows seemingly! 10/10 recommend this dealership. More

by kholt173
Service Price Transparency
Workmanship
Service Time
Service Communication
Recommend Dealer
Yes
Jul 23, 2026

Fountain Buick GMC responded

Thank you for recommending Fountain Buick GMC. We appreciate your positive feedback about our team's professionalism and efficiency.

July 22, 2026

Dealership Rating
Employee Rating

I cant express enough how happy and satisfied I was with the smooth progress. They didnt drag it out I gave them my price and they matched it. No hassle no scamming at the end adding extra stuff. Just strai More

by franklinsilk
Sales Price Transparency
Trade-in Experience
Purchase Time
Finance Experience
Recommend Dealer
Yes
Jul 22, 2026

Fountain Buick GMC responded

Thank you for sharing your experience with Fountain Buick GMC. We appreciate your recommendation and are glad the process was straightforward for you.

July 18, 2026

Dealership Rating
Employee Rating

Great service. No complaints. Very professional and willing to answer questions every single time that I had one More

by Yasnny
Sales Price Transparency
Trade-in Experience
Purchase Time
Finance Experience
Recommend Dealer
Yes
Jul 18, 2026

Fountain Buick GMC responded

Thank you for recognizing our team's professionalism and service. We appreciate your feedback at Fountain Buick GMC.

July 08, 2026

Dealership Rating
Employee Rating

Christian helped us out today. Thank you for going through this trade with us and explaining the process. More

by damaris995
Sales Price Transparency
Trade-in Experience
Purchase Time
Finance Experience
Recommend Dealer
Yes
Jul 09, 2026

Fountain Buick GMC responded

Thank you for sharing your experience. We're glad our team could assist with your trade and explain the process clearly. We appreciate your feedback at Fountain Buick GMC.

March 05, 2026

Dealership Rating
Employee Rating

We were very pleased with both Mark Sliney and Fountain Buick. Mark worked with us to get what we thought was a good deal, and he has a "no pressure" approach which we really appreciated. I would recomme More

by dvdgp
Sales Price Transparency
Trade-in Experience
Purchase Time
Finance Experience
Recommend Dealer
Yes
Mar 05, 2026

Fountain Buick GMC responded

We’re thrilled that Mark’s no-pressure style made purchasing your new Buick stress-free. Congratulations, and thank you for recommending us. Feel free to reach out if we can assist you in the future.

February 12, 2026

Dealership Rating
Employee Rating

My experience was not the best , but I’m grateful a car. The worst car experience I ever had More

by shavonmiller1
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
No
Feb 15, 2026

Fountain Buick GMC responded

Thank you for this feedback. We're very sorry to see that you didn't have the best experience at our dealership. Would you mind sending us a message with your contact information so we can learn more and address your concerns? While we're disappointed to learn that we didn't meet your expectations, we'd love to try to turn things around for you.

February 02, 2026

Dealership Rating
Employee Rating

Had a great experience with Fountain GMC. Experienced crew, provided valuable advisory and made my lease experience very pleasant. No crazy dealer add-ons or exorbitant fees. Totally differen More

by alexchuffi
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
Yes

Other Employees Tagged: Luis Davila

Feb 02, 2026

Fountain Buick GMC responded

Thanks for sharing how our team helped make your GMC Sierra 1500 lease smooth. We’re glad our advisors kept everything transparent and fee-free. Enjoy your new Sierra and let us know if we can assist you down the road.

February 02, 2026

Dealership Rating
Employee Rating

I went into the showroom on a 80 degree day a few weeks back and it was stiffling hot. No A/C for a long while, so much for customer comfort. Then I heard a man screaming obsceneties from his office and wa More

by knowherem
Recommend Dealer
No
Feb 02, 2026

Fountain Buick GMC responded

I typically wouldn’t respond to this, but I felt this should be addressed. This review is unequivocally false. I certainly do not scream nor curse out any of our employees. Our entire management staff has been with me for well over 10 years and our sales staff has remained almost entirely intact for my entire 10 years as well, which I am very proud of. That does not happen if the aforementioned actions in this review occurred. Kyle

January 18, 2026

Dealership Rating
Employee Rating

The 2025 AT4X AEV we purchased has significant swirl marks in the clear coat from the dealership. After we had signed all paperwork, my husband drove the truck around to the front entrance to pick me up More

by mkmm
Finance Experience
Recommend Dealer
No

Other Employees Tagged: Luis Davila

Jan 22, 2026

Fountain Buick GMC responded

We're sorry to hear about your experience and would love to get to the bottom of it with you and see if there is something we can come up with to turn it around for you. Please feel free to contact us directly or let us know the best way to contact you and we will reach out.

Jan 23, 2026

mkmm responded

I have contacted the dealership multiple times and left messages for the service manager to call me back and as of this post I still have not heard from anyone to address this issue.

1
...

Dealership Inventory (282 Vehicles)

used 2024 Acura MDX car, priced at $40,470
2024 Acura MDX
used
Gray exterior
Automatic
Front-wheel Drive
new 2026 GMC Yukon XL car, priced at $90,671
2026 GMC Yukon XL
new
Gray exterior
Automatic
Four-wheel Drive
used 2022 Porsche Macan car, priced at $40,929
2022 Porsche Macan
used
Gray exterior
Automatic
All-wheel Drive
used 2023 Toyota Sienna car, priced at $41,736
2023 Toyota Sienna
used
N/A exterior
CVT
All-wheel Drive
used 2023 GMC Terrain car, priced at $23,038
2023 GMC Terrain
used
Gray exterior
Automatic
Front-wheel Drive
new 2026 GMC Terrain car, priced at $42,131
2026 GMC Terrain
new
White exterior
Automatic
All-wheel Drive