Start with seats and rental length
For five people including the driver, start with BEY’s BMW M3 Competition: it lists five seats and a two-day minimum. For up to four people, the Mercedes-AMG GT 43 has a lower published daily rate and deposit, plus a one-day minimum. If you only need a car for one day, the GT 43 fits that request under the current terms; the M3 does not.
Both have four doors. The deciding question is whether you need the M3’s fifth listed seat, specifically want the BMW, or would rather keep the rental subtotal lower with the Mercedes. Passenger comfort, luggage fit and availability still need to be checked for your trip.
The figures below were checked against BEY’s public listings on September 19, 2026. They describe the black M3 and silver GT 43 shown here. They are not a held quote or confirmation of dates.
| Detail | BMW M3 Competition | Mercedes-AMG GT 43 |
|---|---|---|
| Listed car | Black 2026 M3 Competition | Silver GT 43, four-door model |
| Seats, including driver | 5 | 4 |
| Daily rate | $445 | $399 |
| Minimum rental | 2 days | 1 day |
| Separate security deposit | $1,000 | $500 |
| Included mileage | 100 miles per day | 100 miles per day |
| Additional mileage | $5 per mile | $5 per mile |
What the same two-day rental costs
For two billed rental days, the M3’s published rate gives a rental subtotal of $890. The GT 43 comes to $798. That is a $92 difference for the same duration, before any confirmed delivery charge or other amount in the complete quote. Your pickup and return times need to be part of that written quote.
Keep the security deposit on a separate line: $1,000 for the M3 and $500 for the GT 43. It is not included in either subtotal. Ask how it will be handled and what the return and release process requires; the published amount alone does not answer those questions.
For a couple choosing between the two cars for two days, the extra $92 may be worth paying if the M3 is the car they want to drive. If the preference is flexible, the GT 43 starts with both the lower rental subtotal and the lower deposit. Compare the complete quotes before deciding what each trip will cost.
| Calculation | M3 Competition | GT 43 |
|---|---|---|
| Daily rate × two days | $445 × 2 | $399 × 2 |
| Rental subtotal before confirmed delivery or other amounts | $890 | $798 |
| Separate deposit | $1,000 | $500 |
Compare the exact cars you are requesting
BEY’s BMW M3 Competition listing shows the black 2026 sedan. Rear passengers have their own doors, and the fifth listed seat gives it an option the four-seat Mercedes does not offer. That makes it the first of these two to check for a five-person trip. It does not establish room for five people and all their suitcases.
The Mercedes-AMG GT 43 listing shows BEY’s silver four-door car with a brown-and-black cabin. Use that gallery when comparing its appearance with the M3. Its four listed seats include the driver, so plan for a driver and up to three passengers.
If you want a BMW but are deciding between two doors and four, the M3 versus M4 rental guide covers that choice separately. This comparison is about two four-door options with different passenger limits and rental terms.
Check bags, mileage and the handoff
Send the total number of occupants, counting the driver, and the outside dimensions of your bags. Include a stroller or equipment case if you are bringing one. Ask about the load with every passenger seat you need still in use. Exterior photos and seat counts cannot settle luggage fit.
Mileage does not favor either car: both list 100 included miles per rental day and $5 per additional mile. Share the expected route if you plan more than local driving. The 100-mile rental guide explains how to compare the allowance with your itinerary; the quote confirms the terms for your dates.
For a hotel or residence, send the address and preferred pickup and return times. BEY accepts delivery requests within Miami-Dade County and confirms timing, the meeting point and any fee. Check the property’s entrance and parking arrangements before treating the handoff as settled.
Request the car that fits your dates
BEY’s Miami rental requirements call for a driver aged at least 18, a valid driver licence and full-coverage auto insurance. Eligibility and coverage are verified before reservation. Meeting the age minimum alone does not approve a driver for either car.
For five occupants, ask about the M3 first and include the luggage details. For a one-day request with no more than four occupants, ask about the GT 43. For a longer trip where both fit, send the same dates and handoff details for both so the quotes are comparable.
Request availability with your preferred car, pickup and return dates and times, total occupants, bags and handoff address. BEY checks the request and confirms the vehicle, eligibility, rental total, deposit, mileage and handoff terms before payment. Sending the form does not reserve a car or charge you.
M3 and GT 43 rental questions
Can I rent either car for one day?
The GT 43 has a published one-day minimum. The M3 Competition requires at least two days. Those minimums do not confirm availability; BEY still reviews the dates, driver and complete quote.
Can five people travel in BEY’s GT 43?
BEY lists four seats for its silver GT 43, including the driver. For five occupants, start with the five-seat M3 and confirm the passenger-and-luggage arrangement for the exact car.
Is $798 the complete price for two days in the GT 43?
No. It is two days multiplied by the published $399 daily rate. Any delivery charge and the complete total need to be confirmed. The $500 security deposit is separate.
Sources and review
Fact-checked by BEY Rentals on September 20, 2026. Vehicle availability, rates and rental terms remain BEY first-party information and are confirmed for the requested dates.
