r/BMWZ4

Hi! I’m Yves, the solo developer behind Dryv.

Most navigation apps optimise for arriving as quickly as possible. But sometimes I have time, and I wanted something that gives me the scenic route, so I built Dryv for these occasions where the route is as important as the destination.

It compares the fastest route with alternatives designed to be more enjoyable to drive, then explains what each alternative offers and what the detour costs.

I’m not looking for generic “looks good” feedback. The most useful test is very specific:

• Choose a journey or loop on roads you already know
• Compare the proposed routes
• Rate whether each route option feels good or bad (there's a reason picker for bad)
  • I'm interested in what you think about the quality of the generated explanations too and if you find that some kinds of places are missed.
• If possible, start navigation and drive one of them (I use it as my standard GPS app now, even for the fastest route, and it works very well)

If Dryv recommends a bad alternative, that is exactly what I want to hear. Was it boring, stressful, unnecessarily long, on the wrong kind of road, or simply not worth the extra time?

I initially tuned the routing around the Alps and Jura as that's around where I live. Now I need to learn whether those choices hold up on roads elsewhere, especially routes that local drivers already understand well.

Current beta limits

iPhone only, requiring iOS 26.1 or newer

• English only
• Route and map coverage across Europe, the United States and Japan
• Search does not yet support street numbers or businesses, so it's street names and city/town/village names for now
• Route planning and rerouting require an internet connection
• Navigation currently uses more battery than I think it should
• No live traffic

No account is required. You can rate routes directly in the comparison screen and add details when something is wrong.

TestFlight: https://testflight.apple.com/join/6YVUkE5E

I read the feedback personally and will answer questions here. Honest negative feedback is particularly useful.

After drooling on it since middle school, finally got my hands on this beauty (2015, ~70000 km) a couple months back

Wish me luck :D

Hello all, my e89 has developed a bit of a roof issue lately.

When putting the roof down, it seems like the roof doesn’t sit properly in the boot, causing the boot lid to struggle to close, the video kind of shows the roof not sitting level in the boot, I know the few second delay for the hatch to fully close is normal, but the time before this, the hatch clunked when closing.

When I then open the roof again, there is a knock sound coming from the hatch, which to me gives the impression that the latch is under a bit of pressure from the roof not sitting properly in the boot.

Any ideas what could be the issue? Maybe just some adjustment? I won’t use the roof again until it’s been worked on, I plan to take it to the Zed shed in the UK to get a bunch of preventative maintenance done to it

For those that have replaced summer tires with all season tires. Have you noticed any difference in performance?

I'm looking at the michellin pilot sport 4 or pilot sport 5 tires. Appreciate any input. TIA

The steering wheel isn’t original to the car either so bonus points if you can guess what the car is.

Love the way the leather feels and thinking about doing this mod to my other vehicles.

I’m thinking of selling my z4 since I haven’t been driving it much since I bought the car two years ago. Bought it with 57k miles and currently at 62k miles. Currently the car sits on e92 m3 219m 18’m wheels with fresh P4S rubber. If anyone wants any photos or more details on the car feel free to reach out. The car is currently in NYC.

The car was sold on cars and bids 5 years ago and I bought it from them.

https://carsandbids.com/auctions/9lL7XpmG/2011-bmw-z4-sdrive35is

added a few goodies to my '23 z4 m40i.

Active Autowerke No cel catted downpipe & charge pipe

Valvetronic catback exhaust

Dinantronics X piggyback

Magnetic paddleshifters

What's your 0-100 km/h time?

Curious, because my 3.0i automatic seems slightly off the spec.

A 2003 E85 3.0i 5-speed automatic with 81k km.

17 inch wheels.

0-100 km/h as measured with a timer and a speedometer: 7.1 sec with DSC off. Made several checks.

Ambient temp. 21-24 Celcious when measured (70-75 F).

The car is equiped with lighter 17 inch forged wheels, so definitely not the excess rotating mass effect.

What's been previously done:

New spark plugs.

Replaced oil, oil filter, air filter, fuel filter.

Serviced the gearbox and the main gear.

No service errors.

The pistons have been visually checked with a camera as a pre-purchase inspection. Compression haven't been measured.

The servicemen said DISA & Vanos are OK, no replacement needed.

The spec is around 6.2-6.4 sec. The numbers and the impression is that the car slightly lags in the low RPMs but I am not sure.

Any thoughts on what could be the issue?

What are your normal 0-100 times?

Is that smth uncommon to have a 7+ sec for a 23 y.o. E85? Given a relatively low mileage and quite a comprehensive service.

AI suggests that it is likely VANOS or DISA...

She just got a scrub and wanted to strut her stuff

Dreammmmmmmzzzzz4444