Meet Our Staff

The Porsche Marin Team

Our Porsche Team, serving San Francisco & Mill Valley

Let us introduce you to our Porsche Marin staff, show you some of our special Porsche offers and take you through our complete line of new, Certified pre-owned and used Porsche vehicles. We can help you find exactly what you are looking for.

We know your time is valuable. We are sure you will find our site a fast and convenient way to research and find a Porsche or other luxury vehicle that’s right for you. If we can be of any assistance while visiting us online, send us an email and we will promptly reply. We look forward to serving you!

Most of our staff has been with Porsche Marin for more than 10 years.

  • Peter  Sonnen

    Peter Sonnen

    Dealer Principal

    More Info
    Peter  Sonnen

    Peter Sonnen

    Dealer Principal

    Mr. Sonnen has over 50 years in the car business and owns multiple dealerships worldwide. A Bay Area resident for over 30 years, Peter is from Germany and takes pride in the fact that over half of our technicians at Sonnen Porsche are also German. Porsche is Peters passion, and he not only owns the dealership, but used to also own his own racing fleet! He is an active member with the Bach Society, and a supporter for the Porsche Club of America.

  • Bill Lamphere

    Bill Lamphere

    General Manager

    415.380.8000
    Email Me More Info
    Bill Lamphere

    Bill Lamphere

    General Manager

    Bill started selling cars while attending the University of Colorado in 1986. After graduation he decided that the car business was a perfect match for him. In his 30+ years he has worked with Toyota, BMW,Lexus and Porsche. His favorite Porsche is the 911 GT3. In his spare time,Bill enjoys skiing, amateur road racing, golf, and spending time with family and friends.

  • Dan  McNamee

    Dan McNamee

    Service Manager

    (415) 380-8000
    Email Me
    Dan  McNamee

    Dan McNamee

    Service Manager

  • Tim Mattos

    Tim Mattos

    General Sales Manager

    415.380.8000
    Email Me More Info
    Tim Mattos

    Tim Mattos

    General Sales Manager

    Tim has been in the car business since 1983. He was born and raised in Marin county and has lived here for over 58 years. Tim likes the outdoors, playing golf, and sports of all kinds. Tim has three young adult kids, parents, brothers, and sisters that all live in the area.

  • Kia Afra

    Kia Afra

    CPO Manager

    415.380.8000
    Email Me More Info
    Kia Afra

    Kia Afra

    CPO Manager

    Kia is a local Marin resident who’s been working in the car business for over 20 years. His favorite Porsche is the Macan S because of its all-around utility.

  • Ritsa Shone

    Ritsa Shone

    Finance Manager

    4153808000
    Email Me More Info
    Ritsa Shone

    Ritsa Shone

    Finance Manager

    Ritsa has been in the car industry for the last 17 years. Ritsa was born and raised in San Fransico. Her favorite car is a red Panamera Turbo.  Ritsa enjoys spending time at the beach with her two dogs and enjoying classic California weather.

  • Greg Arteche

    Greg Arteche

    Parts Manager

    415.380.8000
    Email Me More Info
    Greg Arteche

    Greg Arteche

    Parts Manager

    Greg has 34 years in the car business, 28 of those being with Porsche. Greg loves the 993 turbo because of its design and the fact that it’s the last air-cooled 911.

  • Gary Wright

    Gary Wright

    Porsche Certified Brand Ambassador

    Fax: 415.380.0540
    Phone: 415.380.8000
    Email Me More Info
    Gary Wright

    Gary Wright

    Porsche Certified Brand Ambassador

    Gary Wright has been with our Sonnen Service team from the start. He has a loyal customer base and it shows in his customer reviews!

  • Tristan Bayless

    Tristan Bayless

    Porsche Certified Brand Ambassador

    Contact directly at: 415.381.7823
    Fax: 415.380.0543
    Phone: 415.380.8000
    Email Me More Info
    Tristan Bayless

    Tristan Bayless

    Porsche Certified Brand Ambassador

    A Jim Russell Certified Racecar Mechanic with his focus in delivering comprehensible repair explanations, Tristan got his start in the automotive world with RUF Automobile GmbH selling ex-works performance parts all over the world. His favorite Porsche is a championship-winning 1968 912 he auto-crosses locally with a close family friend.

  • Sanders  Delars

    Sanders Delars

    Shop Foreman

    415.380.8000
    Email Me More Info
    Sanders  Delars

    Sanders Delars

    Shop Foreman

    Sanders is a Porsche Gold level technician and aspiring shop foreman.

  • Paul Dulberg

    Paul Dulberg

    Porsche Brand Ambassador

    Fax: 415.380.0540
    Phone: 415.380.8000
    Email Me More Info
    Paul Dulberg

    Paul Dulberg

    Porsche Brand Ambassador

    Paul has been selling Porsches for over 12 years now. He is super savvy with all things jazz, tech, and Porsche related.

  • Stephen Poulden

    Stephen Poulden

    Porsche Brand Ambassador

    415.380.8000
    Email Me More Info
    Stephen Poulden

    Stephen Poulden

    Porsche Brand Ambassador

    Stephen has been in the car business for over 25 years, 12 of them with Porsche. He is a Porsche Brand Ambassador.

  • Michael Gray

    Michael Gray

    Porsche Brand Ambassador

    Fax: 415.380.0540
    Phone: 415.380.8000
    Email Me More Info
    Michael Gray

    Michael Gray

    Porsche Brand Ambassador

    Michael Gray has 25 years in the car business, 10 of those with Porsche. He is a Porsche Brand Ambassador.

  • Brett Payne

    Brett Payne

    Porsche Brand Ambassador

    Fax: 415.380.0540
    Phone: 415.380.8000
    Email Me
    Brett Payne

    Brett Payne

    Porsche Brand Ambassador

  • Andrew Proaps

    Andrew Proaps

    Porsche Brand Ambassador

    Mobile: 415.250.691
    Phone: 415.381.7817
    Email Me More Info
    Andrew Proaps

    Andrew Proaps

    Porsche Brand Ambassador

    Andrew has over 15 years of experience in the automotive world and comes from a family deeply rooted in Marin. His favorite Porsche is the 911 Turbo cabriolet in Anthracite.

  • Ron de Vogel

    Ron de Vogel

    Porsche Brand Ambassador

    415.336.5622
    Email Me More Info
    Ron de Vogel

    Ron de Vogel

    Porsche Brand Ambassador

    Ron is a Tiburon resident and has been in the car business for more than 30 years. Ron is an avid car racer and motorsports fan. His favorite car is the Cayman GT4.

Sales

  • Jeff Gwynn

    Jeff Gwynn

    Porsche Brand Ambassador

    4156069687
    Email Me
    Jeff Gwynn

    Jeff Gwynn

    Porsche Brand Ambassador

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415-578-9101

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900 Redwood Hwy • Mill Valley, CA 94941

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Today's Hours:

Open Today! Sales: 9am-7pm

Open Today! Service: 7:30am-6pm

Open Today! Parts: 7:30am-6pm

Porsche Marin

900 Redwood Hwy Mill Valley, CA

Phone: 415-578-9101

http://maps.google.com/?q=900%20Redwood%20Hwy%2C%20Mill%20Valley%2C%20CA%2094941

Parts

Phone: 415-380-8000

900 Redwood Hwy Mill Valley, CA

Sales

Phone: 415-578-9101

900 Redwood Hwy Mill Valley, CA

Service

Phone: 415-380-8000

900 Redwood Hwy Mill Valley, CA
37.9001579 -122.5150814
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Porsche Marin
Porsche Marin
900 Redwood Hwy
Mill Valley, CA, 94941 US
415-578-9101
https://di-uploads-development.dealerinspire.com/porschemarin/uploads/2018/06/PorscheMarinOGImage.png
Porsche Marin 37.9001579, -122.5150814.