I would like to know if there's the possibility to have several different products shown in the same product view as an outfit. Just like in the image below.
Is there any core feature or extension that allows this ?
If you are Using Magento 1.9.1
Goto your AdminPanel in magento and follow the below steps for your purpose:
Step 1:- Select your product in which you want to show related products.
Step2:- Then, Goto Catalog >> Manage Products >> Select Product
Step3:- Select Related Products Tabs from Product Information section (placed on left side).
Step4:- Select product you want show in this product after saving product(s).
Go and view your product on product view page and change your layout you want to show on product details page.
That would be a "grouped product" - it's sort of like a bundle or configurable product in that it is a product that is a collection of other (simple) products. A configurable product lets you select one simple product out of many by attribute, a bundle product lets you sell several products at once for a special price, and a grouped product presents multiple related simple products at once (like an outfit or furniture set) and lets the customer choose which one(s) they want and how many all on the same page. This is a core feature that does not require any extensions.