Looking for a BMW M340i for sale? Whether you’re eyeing a brand-new model or a well-kept used one, this performance sedan delivers serious power, tech, and refinement. But before you pull the trigger, it’s important to know what you’re getting—engine specs, features, market prices, and what to look out for. This guide breaks it all down to help you make a smart, confident purchase.
Why Choose the BMW M340i?
Performance That Delivers
- Engine: 3.0L BMW M TwinPower Turbo inline-6
- Horsepower: 382 hp
- 0–60 mph: ~4.1 seconds (xDrive is quicker)
- Drivetrain: RWD or xDrive AWD
- Transmission: 8-speed sport automatic with paddle shifters
This isn’t just a luxury sedan—it’s a near-M car in disguise. It blends smooth daily driving with serious track-ready power.
M Performance Features
- Adaptive M suspension
- M Sport differential
- M Sport brakes
- Variable sport steering
These features give the M340i sharper handling, better traction, and more control at high speeds compared to a regular 3 Series.
Premium Interior + Tech
- iDrive 8 with curved dual-screen display (2023+)
- Standard wireless Apple CarPlay & Android Auto
- Optional Harman Kardon sound system
- High-quality leather, ambient lighting, and driver-focused layout
This is a cabin built for comfort and connectivity.
What to Look for When Buying a BMW M340i
New vs. Used
New Pros:
- Full warranty
- Latest tech and styling
- No wear and tear
Used Pros:
- Lower price
- Slower depreciation
- Certified Pre-Owned (CPO) options with extended warranty
What to Do:
- Decide your budget and priorities (performance, warranty, savings).
- For used models, look for CPO listings from BMW dealerships.
Rear-Wheel Drive vs. xDrive (AWD)
RWD:
- More classic BMW feel, lighter weight, slightly better fuel economy.
xDrive (AWD):
- Faster off the line, better in poor weather.
What to Do:
- If you live somewhere with snow or rain, xDrive may be the better daily option.
Maintenance History (For Used Models)
What to Check:
- Regular oil changes and service intervals.
- Brake and tire wear (these cars get driven hard).
- Any warranty or recall work completed.
What to Do:
- Ask for service records.
- Avoid listings with sketchy maintenance history.
Optional Packages
Some options to look for include:
- Driving Assistance Package: Lane keep assist, adaptive cruise
- Premium Package: Heads-up display, heated seats, gesture control
- Shadowline Package: Blacked-out trim, darkened lights for sportier looks
What to Do:
- Make sure the car you’re considering has the features you want—packages vary widely.
BMW M340i Price Guide (as of 2025)
| Model Year | Condition | Price Range |
| 2024 New | New | $58,000–$65,000 |
| 2022–2023 | CPO/Used | $45,000–$55,000 |
| 2020–2021 | Used | $35,000–$45,000 |
Prices depend on mileage, condition, trim, and location.
Where to Find a BMW M340i for Sale
BMW Dealerships
- Best for new or Certified Pre-Owned (CPO) models.
- Offers financing, warranties, and service packages.
Online Car Marketplaces
- AutoTrader, CarGurus, Cars.com, Edmunds
- Filter by year, price, location, drivetrain, and more.
- Look for one-owner vehicles with clean history.
Private Sellers
- Can save money, but comes with more risk.
- Always get a pre-purchase inspection.
- Run a Carfax report to check accident history.
Auctions
- Websites like Bring a Trailer or Cars & Bids sometimes list well-maintained enthusiast-owned M340is.
- Good for rare specs or color combos.
Red Flags to Watch Out For
- Accident history or salvage title
- Heavy aftermarket modifications (unless that’s what you want)
- Missing service records
- High-performance tires worn unevenly (possible alignment or suspension issues)
- Sellers unwilling to allow pre-purchase inspection
FAQs
Is the M340i worth it over a 330i?
Yes, if you value performance. The M340i offers nearly 100 more horsepower, sportier handling, and more standard features.
How reliable is the BMW M340i?
It’s solid overall, especially the B58 engine, which has a good reputation. Just stay up-to-date on maintenance.
What’s the fuel economy?
- RWD: ~26 mpg combined
- xDrive: ~25 mpg combined
Actual mileage depends on how you drive.
Can the M340i be tuned?
Yes, the B58 engine responds well to tuning. But if you’re buying a used one that’s been modified, make sure it was done right.
What’s better: M340i or Audi S4?
The M340i generally has more power and sharper handling, while the S4 offers quattro AWD standard and a more understated feel. Test drive both if you can.
The BMW M340i is a true all-rounder—blending daily comfort with serious performance. Whether you’re buying new or used, do your research, check the vehicle history, and choose the drivetrain and options that match your lifestyle. If you find a clean M340i for sale at the right price, it’s one of the best sport sedans on the road.