Choosing the Best Used Convertible Roadster: A Buyer’s Guide
I’m a fixated, hyper analytical, dopamine driven, passionate buyer and I’ve compiled an article based on what I look for in a used convertible roadster that I plan on purchasing and driving in Southern California. Now I based my search on what I value and for the climate that I live in, I think this article just might be very helpful to anyone looking for a nice used convertible roadster. Check it out!
If you’re in the market for a used convertible roadster, you’re likely considering performance, reliability, maintenance costs, and long-term value. With many options available—from the legendary Mazda MX-5 Miata to the luxurious BMW Z4 and powerful Porsche Boxster—choosing the right one depends on your budget, driving style, and future plans (daily driver, weekend toy, or collectible investment).
This guide breaks down the most popular convertible roadsters, comparing their engines, reliability, maintenance, performance, and collectibility to help you make the best choice.
Top Convertible Roadsters Compared
| Car Model | Engine Options | 0-60 MPH | Reliability | Maintenance Cost | Collectibility |
|---|---|---|---|---|---|
| Mazda MX-5 Miata (ND, 2016-Present) | 2.0L I4 (181 HP) | 5.7 sec (2019+) |  Most reliable |
Low ($500-$800/yr) |  Not collectible, but enthusiast-loved |
| Fiat 124 Spider (2017-2020) | 1.4L Turbo I4 (160 HP) | 6.3 sec (Abarth) | Good, but turbo needs care |
Moderate ($500-$1,000/yr) | Uncertain collectibility |
| Porsche Boxster 981 (2013-2016, GTS Preferred) | 2.7L or 3.4L NA Flat-6 | 5.5 sec | Great, but expensive repairs |
High ($1,500-$3,000/yr) |  Strong appreciation |
| BMW Z4 (E85, 2006-2008, 3.0si) | 3.0L NA I6 (255 HP) | 5.6 sec | Very durable N52 engine |
Moderate ($800-$1,500/yr) | Stable value |
| BMW Z4 M Roadster (E85, 2006-2008) | 3.2L NA I6 (330 HP) | 4.7 sec | S54 engine is powerful but high-maintenance |
High ($1,500-$3,000/yr) | Increasing collectibility |
| BMW Z4 (E89, 2009-2016) | 2.0L Turbo I4, 3.0L Turbo I6 | 5.1 sec (35is model) | Turbo & electronic issues |
High ($1,000-$2,500/yr) | Unlikely to appreciate |
| BMW Z4 (G29, 2019-Present) | 2.0L Turbo I4, 3.0L Turbo I6 | 3.9 sec (M40i model) | Toyota’s influence improved reliability |
Moderate ($1,200-$2,000/yr) | New, uncertain collectibility |
| Mercedes-Benz SLK 350 (2006-2008) | 3.5L NA V6 (268 HP) | 5.4 sec | Okay, but costly repairs |
High ($1,000-$2,000/yr) | Unlikely to appreciate |
| Honda S2000 (AP2, 2004-2009) | 2.2L NA I4 (237 HP) | 5.4 sec | Very reliable, but aging |
Moderate ($800-$1,500/yr) | Strong appreciation |
Most Reliable Convertible Roadsters
If reliability is your top priority, these roadsters are your best choices:
1. Mazda MX-5 Miata (ND, 2016-Present)
Naturally aspirated 2.0L engine = less complexity, fewer failures Extremely low maintenance costs (~$500/year) Lightweight, fun, and durable—perfect for a daily driver or weekend car
2. Honda S2000 (AP2, 2004-2009)
Bulletproof 2.2L high-revving engine (F22C1) No turbo, minimal electronics = fewer failure points Prices are already rising—great investment potential
Verdict: If you want a low-maintenance roadster for worry-free driving, the Miata or S2000 are your best bets.
Best Performance & Driving Experience
If speed and handling matter most, these are the best choices:
1. Porsche Boxster 981 (2013-2016, GTS Preferred)
Mid-engine layout = best handling of any roadster on this list Last naturally aspirated Boxster before Porsche went turbo Flat-6 engine sound & responsiveness make it an enthusiast favorite
2. BMW Z4 M Roadster (E85, 2006-2008)
330 HP inline-6 (S54 engine from E46 M3) revs to 8,000 RPM 6-speed manual only—perfect for purists Already appreciating in value due to rarity
Verdict: If you want the best driving dynamics and don’t mind higher maintenance costs, the Boxster 981 and Z4 M Roadster are top choices.
Best Convertible Roadsters for Collectibility & Appreciation
If you’re looking for a convertible that will increase in value, these have the best long-term potential:
1. Honda S2000 (AP2, 2004-2009)
Prices have skyrocketed—especially for clean manual models Last true high-revving Honda sports car Limited production, lightweight, and enthusiast-loved
2. BMW Z4 M Roadster (E85, 2006-2008)
Low production numbers (~3,041 units in the U.S.) S54 engine + manual-only = collector favorite Already rising in price (~$30,000+ for clean examples)
3. Porsche Boxster 981 GTS (2013-2016)
Last naturally aspirated flat-6 before Porsche went turbo Limited production GTS models already appreciating One of the best-handling roadsters ever made
Verdict: If you want a car that could be worth more in 5-10 years, go for the Honda S2000, Z4 M Roadster, or Porsche Boxster 981 GTS.
Final Verdict – Which Convertible Should You Buy?
Want the most reliable and fun roadster? → Mazda MX-5 Miata (ND) or Honda S2000 Want the best handling & performance? → Porsche Boxster 981 GTS or BMW Z4 M Roadster Want the best balance of power, reliability, and affordability? → BMW Z4 3.0si (E85/E86, 2006-2008) Want the best future investment? → Honda S2000 or Z4 M Roadster Want a modern roadster with good tech? → BMW Z4 (G29, 2019-Present)