C30: D3 or D2 Heico Sportiv?

Moin colleagues, I’m thinking about whether I should finally buy a C30 before it disappears from the price list. Actually, it’s not the question “ob” but rather “wann”. That depends a little on the OHL, on how long I can and wants to drive my 2001 SAAB 9-3 convertible ….. So, only with the engine question there is still a big question mark and I wanted to hear your opinion. OK, this should not be a typical “Which engine fits best, I am the one and the one and so and so” – become thread, there are plenty of them. No, I want to know from you what experiences you have done with Heico Sportiv, what such a pimaldaumen costs and which of the two solutions is to favor and why. To choose, see the D3 or the D2 with Heico Sportiv! So, what your point of view? Thanks in advance, please, but no “That depends on how you carry out” advice/answers pragmatically.