I’m 6’5″+ a bit!, I’d have to say the access isn’t particularly high to climb into but the internal cabin is certainly on the larger side (great for me). As far as I can see the front cabin and access are the same on both versions.
One thing to be aware of is the coupe doesn’t appear to come with a rear wiper, some owners of other cars with this “feature” have found it particularly annoying.
Please excuse spelling/typos. Apart from being a clot it turns out I had one on my cerebellum that's now causing various problems!