2013 991 Carrera 4S Top Speed run on the Autobahn - 5 mph more than Porsche claims
#16
05-01-2013, 09:41 PM
Registered User
Join Date: Jan 2012
Location: Silicon Valley, California
Posts: 2,293
Rep Power: 150 
I've never had any car I've owned be accurate when comparing speedo to GPS.
My Ruf 996 GT2 showed 207mph on the speedo when GPS was 202mph.
Worst error was a Gallardo that did a GPS 177mph when showing 190mph.
Best speedo was a 700bhp Nissan GTR R34, which showed 200mph on the speedo when GPS was 199mph, but this was only because I had deliberately slightly over-sized the tyres (295/35 front and rear).
My Ruf 996 GT2 showed 207mph on the speedo when GPS was 202mph.
Worst error was a Gallardo that did a GPS 177mph when showing 190mph.
Best speedo was a 700bhp Nissan GTR R34, which showed 200mph on the speedo when GPS was 199mph, but this was only because I had deliberately slightly over-sized the tyres (295/35 front and rear).
where were you driving all these cars at these insane speeds????
#17
05-02-2013, 06:15 AM
ChuckJ
Last edited by ChuckJ; 05-02-2013 at 06:52 AM. Reason: Added GPS comparison
Thread
Thread Starter
Forum
Replies
Last Post
joseph_number1
Automotive Parts & Accessories For Sale/Wanted
12
07-19-2018 05:45 PM
