BRIO My First Darling (a soft horse with train carriages and track - £24.46 on Amazon) for £9.99
BRIO My First Squiddo (as above, but an octopus!) for £9.99
BRIO My First Peppo (a soft penguin with train carriages but no track - elsewhere for £12.99) for £5.99
All suitable for 18m+
The train carriages are the same width etc as the regular BRIO, so as the child gets older you can move them onto a traditional track if you want.