The best of 10 tested bug removers- Simoniz Bug Shifter
"Strong whiff of glass cleaner reveals the roots of this Bug Shifter, and it’s a winning formula for us. Just spray, leave for a few minutes then wipe and watch the bugs come off on your cloth.
Add this performance to a well priced trigger pack, and you have our champ."
http://www.autoexpress.co.uk/products/products/239323/simoniz_bug_shifter.html
Not tested by me, but the price looks good
"Strong whiff of glass cleaner reveals the roots of this Bug Shifter, and it’s a winning formula for us. Just spray, leave for a few minutes then wipe and watch the bugs come off on your cloth.
Add this performance to a well priced trigger pack, and you have our champ."
http://www.autoexpress.co.uk/products/products/239323/simoniz_bug_shifter.html
Not tested by me, but the price looks good