Just been to my local Tesco - they had a shelf end with all the simoniz car cleaning products reduced to only £1.25 each.
They have the prices marked down from £6 each.
I bought the 3 layer car shampoo, back to black, wheel cleaner & Bug spray. Theres lots of other items available.
They are showing on Tesco website £2.50. Halfords website shows these products £4.99 (3 for 2)
Good price for top quality products.