thanx for the gr8 idea... my son also loves cars...he sleep with his toy cars in his hands..i will definitly try this.

My son loves cars so when i had to seat him i would pretend it is a car. Celebrate this step and make a bid deal when baby sits on the seat. I had a Winnie the Pooh seat which my kid enjoyed Make it fun and exciting for your child. All the best

i had tried musical book,nursey rhyme,changed location,potty training videoss but nothing worked...now i will try ring seat..hope it will work..thanx for the suggestion.

It's quite normal. Don't force. See if you can make it more fun, be with him maybe tell him some stories or read a book, change the location of the seat, try a ring seat in the regular toilet. Also talk about this and how big boys use the potty especially when he is not on the seat. Just one word of caution do not give inventive which is difficult to cope with like chocolate or anything like that.