Lol there’s no value of this naming anymore. The 340 had a 3.4kW motor and the 450 had 4.5kW motor I think. That’s why they were named that way? But with the 450X I guess they threw that naming out. And just named it the 450 platform completely forgetting that this was originally the S340 platform 
More like a 450r or 450 lite or 450e
I hope they bring a cheaper version on the 450 platform itself. And not some new one. Because then it might happen sooner 