Visibility and colour

[andrew34ruby]

is this yellow bright enough?

Yes that is bright enough, and it's a lovely colour, it looks great for a van. I'm not sure about a saloon in that colour.

As for on a motorway................. Don't think I would ever choose to take a seven on a motorway. If I had to, then I'd want 3 or 4 large bright flashing orange lights across the back.

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I bought these high vis signs for the Eurotour in 2022 and will again use them on our trip north in a couple of days time.
They were not expensive and are fully magnetic and readily available on the internet.
Along with the LED lights the look bright in poor lighting conditions.
I always remove them when we've finished for the day
Cheers

Around town and on country roads I would expect this slow vehicle sign to make drivers all the more keen to get past. In a modern car I find traffic behind is content with me going at 22 mph in town, and 35 on country lanes. In the 7 they hug too close behind and eventually overtake. I'm told that the led brake lights on the 7 are very bright!