The RM Design Blog has created a rendering of the next-generation Lexus IS convertible:
The shape of the new IS appears to translate much better into a convertible — the flatter, wider trunk should make for a more natural folding roof.
(The bigger question is: Will Lexus be releasing an next-generation IS convertible? There’s not much in the way of rumors at this point, but I imagine things will be become clearer once the expected mid-size coupe is released.)
[Source: RM Design Blog]