London to Stuttgart - Which Porsche is quickest?
Discussion
I recall an Autocar feature where they pitched a Ford Focus diesel against a Lamborghini Murcielago (or similar) in "race" from London to Stutgart (but it could have been Munich). The Lambo had the speed on the Autobahn, but it had to stop at least three times for fuel. The Focus only had to stop once and hence won.
I'm wondering which Porsche would be quickest. I dobut it would be a Taycan.
I'm wondering which Porsche would be quickest. I dobut it would be a Taycan.
Unless they are lucky with refuelling and need fuel just before starting on the unrestricted autobahn so that they can cover the final stretch without stopping I still don't think the amount of unrestricted autobahn on the route is big enough to overcome the fuel use vs speed issue. I still think it would probably be the Porsche with the biggest fuel tank being driven in a fast but not stupidly fast way, probably a Panamera.
I've seen the likes of Porsches on numerous occasions blast past me on the autobahn here in Germany only to see them later on limping off to the petrol station, thereby losing any speed/time advantage they had.
I've seen the likes of Porsches on numerous occasions blast past me on the autobahn here in Germany only to see them later on limping off to the petrol station, thereby losing any speed/time advantage they had.
Diesel Panamera. They literally litter Poland’s autostradas driven huge distances each year by well to do businessmen. Decent range from the 100l tank (1000 Kms or so) Faster to refuel if you use the black pump for hgvs.
It most certainly isn’t the cayenne gts. My last trip to the Uk required more fuel stops than in any other vehicle I’ve ever owned. Lucky to get 500 kms out of 100l of fuel at autobahn speeds
It most certainly isn’t the cayenne gts. My last trip to the Uk required more fuel stops than in any other vehicle I’ve ever owned. Lucky to get 500 kms out of 100l of fuel at autobahn speeds

churchie2856 said:
I recall an Autocar feature where they pitched a Ford Focus diesel against a Lamborghini Murcielago (or similar) in "race" from London to Stutgart (but it could have been Munich). The Lambo had the speed on the Autobahn, but it had to stop at least three times for fuel. The Focus only had to stop once and hence won.
I'm wondering which Porsche would be quickest. I dobut it would be a Taycan.
Pretty sure I remember Colin Goodwin talking about this on the Collecting Cars podcast with Chris Harris last year - a good listen if you've not come across them yet.I'm wondering which Porsche would be quickest. I dobut it would be a Taycan.
Porsche 993 manual
Trip 1
Stuttgart to Evesham 680 miles. Started on a full tank kept her at an indicated 85MPH and stopped for fuel once.
The last forty miles from Oxford were a bit of a worry with the fuel light on but she managed it.
Total time including ferries (and a customs check) exactly 12 hours start to finish. Managed to get home before the pubs closed where a few refreshing beers finished the day off.
Trip 2.
160 plus indicated on the speedo at times on the autobahn.... lots more petrol stops but actually dont think it was any quicker or longer tbh.
Trip 1
Stuttgart to Evesham 680 miles. Started on a full tank kept her at an indicated 85MPH and stopped for fuel once.
The last forty miles from Oxford were a bit of a worry with the fuel light on but she managed it.
Total time including ferries (and a customs check) exactly 12 hours start to finish. Managed to get home before the pubs closed where a few refreshing beers finished the day off.
Trip 2.
160 plus indicated on the speedo at times on the autobahn.... lots more petrol stops but actually dont think it was any quicker or longer tbh.
My hunch would be a 911 of some sort. Then again, I would probably state this answer for almost ANY car related query. Eg: "What would you use to go on a week long camping with the whole family?" 911 of some sort... "Best car for crossing a muddy field?" 911 of some sort...So yes, I'm a dedicated 911 fanboy. 
But.. hear me out. The flat 6 is remarkably efficient and its a relatively light car. Traveling at speeds of up to ~100mph fuel is OK (anything over and mpg falls dramatically) = more distance covered. Some come with the option of an extended fuel tank = less stops to fuel. Its generally quite comfortable place to be (if a bit noisy) = less stops to "stretch".
So... 911 it is (something like a base 997/1/2 Carrera).

But.. hear me out. The flat 6 is remarkably efficient and its a relatively light car. Traveling at speeds of up to ~100mph fuel is OK (anything over and mpg falls dramatically) = more distance covered. Some come with the option of an extended fuel tank = less stops to fuel. Its generally quite comfortable place to be (if a bit noisy) = less stops to "stretch".
So... 911 it is (something like a base 997/1/2 Carrera).
Wozy68 said:
Porsche 993 manual
Trip 1
Stuttgart to Evesham 680 miles. Started on a full tank kept her at an indicated 85MPH and stopped for fuel once.
The last forty miles from Oxford were a bit of a worry with the fuel light on but she managed it.
Total time including ferries (and a customs check) exactly 12 hours start to finish. Managed to get home before the pubs closed where a few refreshing beers finished the day off.
Googlemaps indicates 11hr20min but that allows for no stops nor tunnel waiting time, which will add another ~3hrs? Therefore 12 hrs, not bad! Trip 1
Stuttgart to Evesham 680 miles. Started on a full tank kept her at an indicated 85MPH and stopped for fuel once.
The last forty miles from Oxford were a bit of a worry with the fuel light on but she managed it.
Total time including ferries (and a customs check) exactly 12 hours start to finish. Managed to get home before the pubs closed where a few refreshing beers finished the day off.
Qwerty911 said:
It would be interesting to see a table, by cars, for mpg @ 100mph and 155mph etc!
A bit old... and in my experience high speed fuel economy has improved a LOT since then.https://www.autobild.de/bilder/was-kostet-vollgas-...
Fuel economy when flat out...
https://www.autobild.de/bilder/zehn-autos-im-vollg...
Nice table further down the page...
https://www.focus.de/auto/ratgeber/kosten/hiliste-...
Chainsaw Rebuild said:
Obviously it would be poppopbangbang's 911.
I recall one of the reasons he gave why he chose one was its high speed fuel efficiency. Something like 25mpg even at 100mph.My Cayenne might just manage 25mpg at 50mph. Maybe even 55mph

A diesel Panamera is probably the winner for the OP's question.
Roadrunner996 said:
Beaten to the punch! The Porsche PFM 3200 obvs.
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