I finally have an unbeatable horse!!
I play on Normal difficulty and have had many top class horses but I now have one who wins every race on the bit.
Not sure how to paste the screen shot but this home bred 4 year old filly has already won 14 group 1's on the spin and broken 2 track records (game is in about 40th season!!) and has already won £11.7 million! (my current ever top earner was £16.5 million and this is a daughter of hers) so she should easily beat that.
What is your best horse ever?