What is the fastest, you have ever driven on a highway.

I've touched 80mph once or twice, and only briefly, but my car's not really built for Autostrade speeds. That was probably overtaking downhill on a motorway, to pass one 40tonne lorry overtaking a couple of others at their speed difference of 3mph.

More importantly I do not intend to break the speed-limit! It is just not worth risking a hefty fine, probable "points" on my still-clean licence, and increased insurance premiums; just to save a few minutes that rarely need "saving".


I applied basic arithmetic to a journey I take occasionally, of about 310 miles each way with 210 on the motorway. The other 100 are on ordinary roads with many obstacles and speed limts.

The difference between 70mph and 60mph maintained throughout that entire motoway stretch is only 30 minutes!

So insignificant. (The arrival times on these journeys are not important. If they were I'd obviously start an hour earlier.)


It is of course impossible to achieve such driving in reality, and the mean speed for these journeys is <50mph, even with minimum fuelling and "T&P" stops to a minimum.

The significant difference is in fuel consumption, of course. I've not measured it but my car's most efficient cruising speed is probably 60-65mph.



The spped limits in the UK are 70mph on motorways and dual-carriageways, 60 on single-carriageway roads, except in built-up areas or where otherwise stated.

120. Many years ago in my Chevelle SS 454. It's a bit of a careless story. 🫣

130ish on accident. I wasn’t paying attention to my speed, and it was a quick quiet car. When I suddenly realized it wasn’t that other people were driving slowly, I slowed down 😂

Driven, 100. As a passenger my dad hit 130 on the highway in an old two seater convertible he was working on with no floor. I was maybe 12, feet on frame in the back area watching the drive shaft spin believing I was going to die.

Got a VW Golf GTI 16 valve up to 118 mph on the autobahn in Germany in 1991
Fastest in US is 110 too

I did 110 on a BMW motorbike

120 and speedo was pegged. Might have been a lot faster.

125 mph on both my bikes, 160 mph in my Mustang.

About 160mph when I let the SRT 8 stretch her legs.

Probably about 80mph I like to be safe.

Maybe like 150 km/h. I don't know what that is in miles.

i think about 95 mph
i dont dice with death

I think I was going 90

~120 mph .. passing a couple of semis on a stretch of interstate w 80 mph speed limit

Perhaps 88, might of hit 90 on the interstate

165 mph.

Somewhere around 80 to 85 mph.

160

100

110.

70