Get what I got it's the actual manufacture of the batteries you mention but at a cheaper cost... Since they rebadge them for this companies I paid 65 bucks if I remember correctly and starts the car right up, I even tried it on a friends 510 ka24de he has the battery located in the back and it started it right up ... I even jump started my fathers Mercedes suv... I bought mine from Tri state batery. Here's the link
Tri State Battery Online Catalog
Don't let the 200cca scare u that's at 0 degrees...
Here's a link to how I originally found information on the battery
VWVortex.com - lightweight battery install..... and some information