Design a product to help people buy cars.

Since the question is pretty general, I would like to unnderstand it better before trying to solve it.

1. The term 'Product' could mean both Hardware product or a Software app. However I would like to go with an app as we are more experienced in "App" Domain than a Physical Product. Hope the assumption is fine. Yeah, it makes sense.
2. I would like to keep the 'Cars' term as general as it sounds and not want to narrow it to some specific type of Car. This is because as of now I don't feel narrowing this would create a huge difference. Hope this is okay? Yeah it's fine
3.  Already Facebook has a Marketplace. Why do we want this separate from Marketplace? Of all the listings in Marketplace, Cars are the least ones in  number. That's why we are planning to make a separate one unique for cars.
4. Since people tend to buy first hand cars from company shwrooms, I like to assume the cars we deal majrly tends to be Second Hands/ Used ones. Is this okay? Yeah this makes sense
5. What is our goal that we are trying to achieve? Help users find suitable cars for them

1. Buyers who do this as a living, i.e., they buy and sell it to others with some profit. They tend to have well versed knowledge with cars and know the intricacies involved 
2.  Buyers who are trying to get a car of their own and are not aware of the intricacies/ having the "car knowledge"
3. Buyers who are well versed with cars as that is their interest and are trying to buy one for themselves

1. Not sure how to decide which car to buy
2. Not sure how to justify if the price is a good deal and espescially with COVID pandemic in place, buyers tend to be afraid of going to a place and check the quality of the car.
3. There is a fear about the ownership of the car [Is the seller the actual owner of the car]
4. Users would like to bargain the price and don't know what how to go about it. Personally I'm someone who is very bad at bargaining and don't know how to go about it. 

Of all these, I would like to prioiritze the above using  the Reach, Impact of these needs/painpoints.

1st and 2nd are pretty common and thus have a huge reacha n impact. While, 3rd is pretty rare and thus have a low reach. 4th has a medium reach.

So I would like to focus on 1st and 2nd from the above discussion.

Thus, the PS is more like, "Design a product to help buyers without car knowledge to buy a car suitable to them"

Solutions

Of all the above solution, I would like to prioritize the Solution 1,3,5, and 6 for the MVP due to the above factors.

I would like to see these functionalities added as a part of Facebook under a new tab (say a tab called Car Trades similar to Marketplace). This'll help us garner the initial user acquisition easily without much issue. However, the drawback with this is, Introduction of Updates will take more  time compared to the time taken for a standalone app. 

Success Metrics:

• # of users visting the tab per day
• # of threads created in the forum per day
• # of successful transactions

Summary:

The problem's scope was narrowed to help users buy a car with no prior knowledge through various discussions and assumptions. After brainstorming, the decided solution is to have a new tab similar to Marketplace exclusively for Cars with features like a forum page for users to have discussions on what to buy, Calculation of Resale Value and Quality Score through AI, Checking Car's history through Partnerships.