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Dealers / Portland, OR / M & M Investment Cars
Used car dealerPortland, OR
B

M & M Investment Cars

Buyer's Guide grade B · 612 public reviews · September 2026

M & M Investment Cars earns a B. 612 public reviews average 4.6 stars and 9.6 percent are one or two stars. That ranks it above 58 percent of graded dealers around Portland.

At a glance

  • Mostly happy buyers, with a small share of complaints.
  • Complaint share 9.6 percent, level with the 10.1 percent typical near Portland
  • Reviewers mention truck selection most, in 143 reviews
  • Closed Sundays · Used car dealer

Why It Got a B

The star average is 4.6 from 612 public reviews. After the grade pulls it toward the national average, it counts as 4.58. 9.6 percent of reviews are one or two stars. To reach an A it would need an adjusted rating of 4.6 and a complaint share of 8 percent or less. How the grade works.

How the Stars Break Down

5 star525 86%
4 star20 3%
3 star8 1%
2 star11 2%
1 star48 8%

What Reviewers Talk About

The subjects that come up most in public reviews of this dealer, with how many reviews mention each one.

truck selection 143no pressure sales 344runners 30kind staff 27test drive 19easy transaction 18diesel trucks 13tundra 12clean vehicles 8airport pickup 2

Buying From M & M Investment Cars

M & M Investment Cars is an independent used car lot. Independent lots range from excellent to poor, and the car in front of you matters more than the sign out front. Ask whether the car is sold as is and read the Buyers Guide sticker in the window. What as is means.

Whatever the grade, the grade is about the dealer. The car is its own question. Ask the dealer if an independent inspection is allowed before you sign. A good lot says yes.

Dealer Details

Address2774 N Hayden Island Dr, Portland, OR 97217
Phone503-515-3777
Websitemminvestmentcars.com
Listed featuresBuys vehicles, Sells used vehicles, Credit cards, Debit cards, Phone pay, Delivery
TypeUsed car dealer

Hours

Monday10 AM to 6 PM
Tuesday10 AM to 6 PM
Wednesday10 AM to 6 PM
Thursday10 AM to 6 PM
Friday10 AM to 6 PM
Saturday10 AM to 6 PM
SundayClosed

Common Questions

Is M & M Investment Cars a good dealer?
M & M Investment Cars earns a B in the PPI Auto Buyer's Guide. Mostly happy buyers, with a small share of complaints. The grade reads 612 public reviews averaging 4.6 stars, with 9.6 percent at one or two stars. It rates past buyers' experience with the dealer, not any single car.
Can I get a car at M & M Investment Cars inspected before I buy?
Yes. PPI Auto sends an inspector to the car on the lot in Portland. You do not have to be there. The inspection covers 122 points, a full OBD-II scan with readiness monitors, a road test and photos of anything found, and the report comes the same day. Ask the dealer to hold the car while it is checked.
How is the grade worked out?
It needs 20 or more public reviews. The star average is pulled toward the national average by 25 average reviews so a short record cannot jump the line, and the share of one and two star reviews sets a ceiling. The full method is on our grading page.
Is M & M Investment Cars open on Sunday?
Its listing shows it closed on Sunday. Hours change, so call before you drive over.

Other Graded Dealers Nearby

Buyers Also Look At

Grades update when public reviews do. Is this your dealership and something here is out of date? Tell us. See every graded dealer in Portland, OR. Found a car here? Book a pre purchase inspection in Portland, OR before you sign.

Buying from this lot?

Inspect it on the lot

We check the car at M & M Investment Cars before you sign.

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Inspect a car at M & M Investment Cars

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Details

No payment now · We confirm scheduling before any work

The grade covers the dealer. We check the car.

122 points, a full scan and a road test, on the lot, same day report.

Call 951-267-8500