Bribing for a baby

Hi all! I am ready for baby #2, our daughter is 2.5 now and I have always wanted to give her a sibling.

My husband wasn't initially sold on having kids at all, but he knew that marrying me meant he would have at least one. He loves our daughter immensely even though she has been a lot of work for both of us, but he has said he would prefer not to have another. I really do want one and now he says the only way he will agree to having more kids is if I agree to let him get a sports car.

What are your thoughts on this? Is it crazy for him to ask, and crazy for me to consider it? I feel like I am buying his acceptance and worried it won't go well long term once reality sets in.

No judgment please - thank you for your thoughts! Has anyone been in a similar situation?