Sergio Martell
Sergio Martell at Dalton Hyundai of National City

Sergio Martell

General Sales Manager

Dalton Hyundai of National City

3150 National City Boulevard
National City, CA 91950

Contact Me
4.5
32 Reviews

Dealership Experience

2 yrs, 2 mos

Industry Experience

18 yrs, 5 mos

Languages Spoken

Spanish Spanish

4.5

32 Reviews

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32 Reviews of Sergio Martell

October 08, 2026

Dealership Rating
Employee Rating

Great people working at your dealership and I was a pleasure working with your people More

by eddielozano1993
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
Yes
Oct 08, 2026

Dalton Hyundai of National City responded

We’re glad you found our team enjoyable to work with when purchasing your new Elantra. Your kind feedback about our staff means a great deal to us.

September 28, 2026

Dealership Rating
Employee Rating

First time using this service and it was great! I did have to wait alittle longer than expected but there were many other vehicles that day. Received great customer service from Alysssia!! More

by Hijar_827
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
Yes

Other Employees Tagged: Rick Griffin, Mark Moore, Monica Salem , Alessia & Felipe

Sep 28, 2026

Dalton Hyundai of National City responded

We’re glad your first visit led to your purchase of the used Hyundai Santa Fe XL and that our staff could take care of you, even with a bit of a wait. Knowing you appreciated our support means a lot to our dealership.

September 26, 2026

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I have been very pleased with this dealership since the beginning. I like their friendly hassle-free approach. I always feel welcomed there. The staff is very professional and well trained. More

by RBMARROQUIN
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
Yes
Sep 26, 2026

Dalton Hyundai of National City responded

We’re glad our friendly, hassle-free approach made you feel welcomed from the start of your new Elantra purchase. Hearing that our staff’s professionalism and training met your expectations means a lot to our team.

September 24, 2026

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This was the worst visit with Dalton and although my second vehicle purchase, my credit was at 813, 3 years later , I have had 3 deaths in my family and 4 in my son-in-laws. Things happen but the treat More

by letylin60
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
No

Other Employees Tagged: Rick Griffin, Mark Moore , Marc

Oct 02, 2026

Dalton Hyundai of National City 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 as quickly as possible. If you would be willing to continue the conversation, we would appreciate the opportunity to address your concerns.

September 21, 2026

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Thank you for a great experience! We visited several dealerships and felt most comfortable at Dalton because of the ease, warmth, and approach is Felipe, our salesman. He answered all More

by keeley162
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
Yes

Other Employees Tagged: Rick Griffin, Mark Moore, Monica Salem , Felipe

Sep 21, 2026

Dalton Hyundai of National City responded

Warm, pressure-free guidance is at the heart of how our sales team operates. Our team is pleased we could answer all your questions and make the purchase of your new Palisade Hybrid feel comfortable. Knowing our approach helped you feel confident means a lot to us.

September 10, 2026

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I had a limited budget and specific needs in my car. Your employees worked diligently to find a perfect match! I love my Vivid Blue Venue!! More

by morrisj194
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
Yes

Other Employees Tagged: Rick Griffin, Mark Moore , Phillip

Sep 10, 2026

Dalton Hyundai of National City responded

Your comment about our team’s diligence in matching your limited budget and specific requirements truly reflects our commitment to finding the right fit. Hearing that you love your new Vivid Blue Venue is incredibly rewarding.

September 05, 2026

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Employee Rating

They found me the car that I was looking for and it was a great experience. More

by georgeescalante66
Sales Price Transparency
Trade-in Experience
Purchase Time
Finance Experience
Recommend Dealer
Yes

Other Employees Tagged: Rick Griffin, Mark Moore, Monica Salem , Adriana Martinez, Gerardo Romo

Sep 05, 2026

Dalton Hyundai of National City responded

Knowing that we found the exact Elantra you were looking for and that the process was enjoyable means a lot to us. Congratulations on your new Hyundai Elantra, and thank you for the five-star review.

August 27, 2026

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Employee Rating

I walked in to dealer knowing what I wanted and Jaime made my shopping experience so much easy with his great costumer service skills I purchase my car same day and left very happy driving my new car all More

by miriam5000
Sales Price Transparency
Trade-in Experience
Purchase Time
Finance Experience
Recommend Dealer
Yes

Other Employees Tagged: Rick Griffin, Mark Moore, Monica Salem , Cedric Butler, Adriana Martinez, Gerardo Romo, Julio Jaime

Aug 27, 2026

Dalton Hyundai of National City responded

Knowing our team’s detailed information made the buying process easy means a lot to us. Congratulations on your new Kona, and we’re thrilled you drove off happy with your purchase.

August 20, 2026

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Employee Rating

The people it’s this place are gentle, they answer my questions and we get a car from there. More

by Patricia Villegas
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
Yes

Other Employees Tagged: Rick Griffin, Mark Moore , Cedric Butler, Gerardo Romo

Aug 20, 2026

Dalton Hyundai of National City responded

Knowing that you found our staff welcoming and attentive means a lot to our team. We’re thrilled you chose us for your new Santa Fe HEV purchase and that we could address all your questions along the way.

August 16, 2026

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Employee Rating

Dalton will try to sell you a used car as new. Literally attempted to switch a new car with a demo car and say it was the same car. Then after you negotiate a price when you go to financing it som More

by Kjdvlb1
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
No

Other Employees Tagged: Mark Moore, Monica Salem , Cedric Butler, Gerardo Romo

Aug 18, 2026

Dalton Hyundai of National City responded

Thank you for your review. We're sorry your visit didn't go as planned, and we'd like to address these issues with our team. If it's possible to discuss your visit in more detail, please send us a message. We strive to make sure that all of our customers leave happy, and it's disappointing to learn that we missed the mark here.

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