Manuel P.
3/26/2025
I have had the pleasure of purchasing a vehicle from Sigma Auto Group and I couldn't be more satisfied with the experience. From the moment I walked in, the staff was incredibly welcoming and...
Sigma Auto Group
Closed
(22)
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1757 Concord Ave
Concord, CA 94520
History
Sigma is owned and operated by the mother and son team of Lulu Bruce and Leon. with over 25 years of experience in the auto industry we opened our lot together 5 years ago and haven't looked back since!
Specialties
We make purchasing a Pre-Owned vehicle a fun and hassle-free experience. Every vehicle comes with an free history report, is well maintained, and comes with the friendly and professional service you've come to expect at Sigma.
Also at this address
Reviews
4.522 reviewsGeorge H.
8/29/2025
Bruce and team were amazing! They were very knowledgeable and helpful finding the car I wanted and all other details.
P B.
7/13/2024
I was looking for a car and did not really know what I wanted. I worked with Leon and LuLu who helped me choose the perfect vehicle. They had large variety of cars on the lot that fit my budget....
Kenneth L.
2/17/2025
***(FRAUD FRAUD FRAUD FRAUD FRAUD FRAUD)**** I've purchased multiple cars from Sigma and Lulu since 2020. Everything always went exceptionally well until my 2018 Ford Raptor needed a new engine...
Rafaella P.
5/13/2024
I wanted to take a minute to rate my experience with Sigma Auto group. This was an incredibly smooth process from the beginning to end. I would like to give a high praise to Lulu, Bruce & Leon....
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