So you can not provide the hotel name or rental car company name? Were you renting a smart car or micro/mini size? I know the tour dates just wanted to know which ones you used to calculate your numbers. Note the clubs don't appear to be close to each other or grouped within the Frankfurt area, at least not most of them. I'm showing different costs
Here are the dates from the fkktour site
APRIL AND MAY 2018
6 Nights Special Offer Dates
April 22 to April 27 $1599 SAVE $400 USE CODE APRIL6DEAL
April 29 to May 04 $1799 SAVE $200 USE CODE MAY6DEAL
8 Nights Special Offer Dates
April 21 to April 28 $1699 SAVE $500 USE CODE APRIL8DEAL
April 28 to May 05 $1899 SAVE $300 USE CODE MAY8DEAL
I used April 21 to April 28 (8 days)
Per Priceline
Rental car "Mini" $172.89US no insurance included $11 more per day
Rental car "Compact" $194US no insurance included $11 more per day
Hotels near Sharks (walking distance)
Hotel Contel Darmstadt Priceline 89 Euros per night 667E for 8 days $820.34US
The numbers
$194 Rental car 8 days
$88 Car insurance
$150 Fuel estimated
$829 Hotel 8 nights
$1261 Total
$1699
$1261-
$438 profit
They profit $55US dollars a day about 45 Euros a day
Observations
Rental cars
While some may argue rental car insurance I've read several nightmares about German rental companies do force you to use their insurance even if you have a credit car see "scam operated by Dollar/Thrifty/Terstappen"
Fuel
I read is 1.50 a litre 3.78 litre per gallon so fuel is closer to $6 a gallon plus I'm paying that in euros so will incure foriegn fees and the conversion rate.
Distance
It's at least 300km from Sharks to popular clubs north so 600km round trip plus each about 50km -100km a day on top of the round trip
so a minimum of 900km driving
Vehicle size
I doubt a tour van seat will be the size of a micro, mini or compact car so a normal sized vehicle should be used to compare however I used a compact anyway.
Maps or GPS
The micro/Mini cars don't offer GPS that feature usually in upper end cars so you may have to bring a GPS and buy Germany maps so that cost needs to be included. I guess you can use your phone but what about International roaming rates?
Hotels
I noticed the low priced places were often Hostels or had very low review ratings
Unless you plan on going to only one club 8 days calls for several hotels
Conclusion
Even without insurance, bigger car came to the conclusion that the tour company is not getting rich by any standard.
Can anyone think of other costs I did not include here?
I've been lurking for some time and interested in this topic
RDugan thanks for doing the ground work for us. I was unable re-create the same numbers you stated, Is it possible to provide the date range, hotel name and rental car company so can use the same calulations you presented. Thanks much appreciated
Comments made by KingGeorge