Since you have mentioned you want a retro bike and are looking in the 350cc category, you could take a look at the Royal Enfield Bullet 350. It has the same engine as your brother's Hunter. It will offer you a more spacious riding position and a laid-back riding experience, not to mention more road presence, if that is something that matters to you. Writing the Yamaha XSR155 off because its engine is "just 155cc" would be a mistake in our opinion. Because its performance belies its displacement, and it will give you great fuel efficiency and also last you a long time. Take a test ride of these two to see which one suits you better.

In the electric scooter market, we would recommend you take a look at the Ather Rizta 2.9 variants, Bajaj Chetak 3001 and the TVS iQube 2.2 / 3.1 for your usage. All three have large storage spaces under the seat, with at least 30 litres of space available, if not more.The Ather is the only one that will give you a touchscreen colour TFT display on the higher Z variants if that is of interest to you. If not, the S variants have the same underpinnings with a few features less while also costing much less. The iQube and Chetak are proven products and have a straightforward scooter riding experience. They are appreciated by lakhs of people and are sure to resonate with you as well. A test ride and visit to your nearest dealer to enquire about service costs is for all three in order to make a more informed decision.

If you want to stay in the same displacement range as your Unicorn, you can look at the Bajaj Pulsar N160 and the TVS Apache RTR 160 4V. Both have great suspension, peppy performance and will return similar fuel economy to your Unicorn. If you want to make a step up, then bikes like the Royal Enfield Hunter / Bullet / Classic 350, TVS Ronin, and Honda CB350 trio will make for good commuting partners. These are bikes with upright, neutral ergonomics, plush suspension setups and torquey, smooth engines. Expect lower fuel economy in comparison to your Unicorn, however, by virtue of its larger displacement.Lastly, the Hero Xpulse 210 is a wonderful do-it-all machine which will have the best suspension comfort of all the bikes listed here.A test ride of all of these bikes will help you determine which one is best for you.

For shorter durations, the Royal Enfield Meteor's feet-forward and generally more laid-back riding position will feel more comfortable. However, when you start spending more time in the saddle and over big bumps, your spine will bear the brunt of the jolt. It is because your arms and legs are outstretched. In comparison, the Royal Enfield Hunter's more neutral and upright riding position will be a better fit overall in all sorts of situations you will find yourself in. Coming to pillion comfort, that's where the Meteor will have the upper hand because of its spacious split pillion seat. Although, the Hunter isn't too bad, especially if you and your pillion aren't very large people. Take a proper test ride and pay attention to how both bikes behave over bad patches of road to determine which is the better option for you.