A SIXT Review – “MINUS STARS”. Consider this review in your decision to rent any vehicle from SIXT, either directly or through any 3rd parties. I will NOT again. I have experienced their “bait and switch” tactics for the 3rd and last time:

“Your RESERVED and PAID FOR vehicle is no longer available. BUT we can offer you this alternative upgrade - at a higher price.”

Finally, I emphatically replied “NO”; and pursued an alternate rental car company. SIXT owes me reimbursement for my alternate 3rd party vehicle rental: USD$1,297.19

I had reserved a vehicle for three days for pickup at SIXT – FRA; pickup May 27, 2026. The reservation was made through EXPEDIA; I received both EXPEDIA and SIXT confirmation numbers: Expedia itinerary: 73440683727690; SIXT Rental # 9733690594. BECOMING a client of BOTH Expedia and SIXT.

Concerned that I might be delayed from the expected pickup time, I attempted to update my pickup time through Expedia; the link would not work. I tried through SIXT also, via the internet (could not due to Expedia origination); by phone (went immediately to message – in German); and via text (I found a number and got a text through. Apparently, ignored.)

Upon my arrival the afternoon of May 27, 2026 at the SIXT – FRA counter: “Your vehicle is no longer available. But we can offer a higher-level vehicle at additional cost.”

MY RESERVED/PAID FOR IN ADVANCE vehicle rental is no longer available!!!! If the RESERVED/PAID FOR IN ADVANCE vehicle had sat for the PAID FOR three days, SIXT would have already reaped economic benefit: PAID FOR REVENUES, with “no miles/no wear and tear”

But SIXT apparently has a different business model:

“Accept PAID FOR rentals. Release the RESERVED/PAID FOR rental vehicles to other lessees (DOUBLE YOUR REVENUES for the same vehicle already under PAID rental). Then charge the original rental client additional fees.) THAT is “Bait and Switch”

If you like that behavior, rent from SIXT. I am still owed USD$1,297.19 for alternate third-party rental costs incurred. I will be re-posting this review until SIXT completes my reimbursement. As for the SIXT perspective: this is an Expedia problem. I also had a SIXT Rental #; became a SIXT client (for the last time).

Good luck to you as a SIXT client. (Victim?) Watch out for their explanation to you: “Yes, we will re-rent your RESERVED/PAID FOR vehicle. But don’t worry, SIXT will have a more expensive vehicle for you.”