Porsche Cayman or C350
Senior Member
Joined: Jan 2010
Posts: 330
Likes: 16
From: North Carolina - Research Triangle
2025 C300W4 AMG, 2023 GLC300 / previous 17 GLC300, 15 BMW 228i, 13 C300, 12 C350 Coupe
The vehicles have very different driving dynamics and were built for different purposes. The C350 Coupe (I have a 2012) is a grand touring car, with a great balance between handling, road feel and comfort. It also only comes with a slush box and is a bit heavy, but a joy for short and long drives.
The Porsche Cayman is much more of a sportscar with very precise handling, great road feel and a responsive engine. I have only driven the R version on a track, but am positive it has far less luggage space than the MB, only room for two adults, and not as many creature comforts at the same price point.
If you want something to play with on the weekend, cut and slash through traffic, take in an occasional track day then the Cayman is a top candidate as well as the BMW 135i.
If you want a daily commuter car and a grand tourer then the C350 meets the bill.
The Porsche Cayman is much more of a sportscar with very precise handling, great road feel and a responsive engine. I have only driven the R version on a track, but am positive it has far less luggage space than the MB, only room for two adults, and not as many creature comforts at the same price point.
If you want something to play with on the weekend, cut and slash through traffic, take in an occasional track day then the Cayman is a top candidate as well as the BMW 135i.
If you want a daily commuter car and a grand tourer then the C350 meets the bill.
Junior Member
Joined: Aug 2011
Posts: 55
Likes: 0
From: Buffalo NY
w204 C350 sport
Two completely different cars. It just depends on what you need it for. My brother has a Cayman S; its a great car and a blast to drive, but as ralawren said there is little luggage space and only two seat. Not a great car if it snows where you live either.
Senior Member
Joined: Jan 2010
Posts: 330
Likes: 16
From: North Carolina - Research Triangle
2025 C300W4 AMG, 2023 GLC300 / previous 17 GLC300, 15 BMW 228i, 13 C300, 12 C350 Coupe
If you still have trouble making a decision after test driving then I strongly suggest you test drive a BMW 135i before you do anything else. The 135i can go head to head with the Porsche Cayman on any public road yet provide room for four adults on short trips, has a trunk and best of all full replacement of wear items for the first four years of ownership. I had a 128i and got the brake pads replaced at 17K miles without any additional charge or any questions!
MBWorld Fanatic!
Joined: Sep 2008
Posts: 4,336
Likes: 8
Porsche 991S, Cayenne S, 1972 BMW 3.0CS E9 Coupe
You couldn't have picked two radically different cars if you tried. Talk about apple and oranges. This is more like tomatoes versus bananas. 
Decide what you want: a sedan or a two-seater sports car. Then choose within the segment.
Decide what you want: a sedan or a two-seater sports car. Then choose within the segment.
