Early 210
The first ones in the early 60's did indeed have struts and used the 182/180/185 Fuse which at that time were all pretty much the same. No idea where they found room to fold up the wheels. Later they used essentially the 205/206 Fuse with struts and only later went to a clean wing and modern Body. But if they only did 145 Kts then only a few knots (if any) more than a good clean 185 without all the expense of fold up wheels. A 182 RG must be faster than that though, I once flew the mighty 172RG and it did 140kts in spite of being a very limited aircraft in all other respects.