Hi, I'm new here and I'm looking into getting an Eos, hopefully soon, and I was wondering what the difference was between the TDI and the FSI.
Thanks

One Diesel the other Petrol,

and 10hp.

As Ian stated with a bit more detail:

TDI = diesel 138hp
FSI = petrol + 10hp (148hp)

There will also be a T-FSI which sports a Turbo and brings power up to 197hp

Then there will be the V6 version later.

And a different exhaust smell,

And one fuel which stinks if you get it on your hands!

In the US right now you can get a 3.2 V6 (really a VR6) or 2.0 Turbo. You have probably seen them call it the 2.0 FSI. FSI is the type of fuel injection system it has which is direct injection. Each cylinder has a fuel injector that squirt the fuel right onto the top of the piston.