GW finally came out with true Scale Space Marines known as Primaris. The Primaris marines are much taller than their previous space marine counterparts and look fantastic next to Imperial troopers where they tower over them. I believe the Space Marines were supposed to be around 7 feet tall, so now they look the part.
The downside to the Primaris is the fact that they are now considered (At least by GW) to be too big to fit into a Rhino for transport and too big for the Land Raider. That doesn't make much sense because Terminators can ride in them and they are way bulkier than the Primaris troopers at present.
At least right now you will have to purchase a Primaris Repulser to move these guys around the battle field. At $80 a pop that doesn't come cheap.